Convert Color Values into Color Names
The colornames R package aims to convert color values into color names using various APIs:
www.thecolorapi.com: pass in any valid color and get conversion into any other format, the name of the color, placeholder images and a multitude of schemes.
colornames.org: a collaborative effort to name every color in the RGB/web space. You can name a random color or vote from some incoming color names.
color.pizza: Rest API that returns a bunch of color names for a given color-value.
Installation
install.packages("colornames")
#install.packages("devtools")
devtools::install_github("lgnbhl/colornames") # from GitHubMinimal examples
Color name using thecolorapi’s API.
get_color_thecolorapi(hex = "#0047AB")
## [1] "Cobalt"Color name using colornames’s API.
get_color_colornames(hex = "#0047AB")
## [1] "Cobalt Blue"Color name using color.pizza’s API.
get_color_colorpizza(hex = "#0047AB")
## [1] "Soulstone Blue"thecolorapi.com API
Call get_color_thecolorapi() to get the closest color name available of a hex code.
get_color_thecolorapi(hex = "#0047AB")
## [1] "Cobalt"The “thecolorapi.com” API return a list of variables about a given color name, by using return_name_only = FALSE.
col1 <- get_color_thecolorapi(hex = "#0047AB", return_name_only = FALSE)
str(col1, max.level = 1)
## List of 11
## $ hex :List of 2
## $ rgb :List of 5
## $ hsl :List of 5
## $ hsv :List of 5
## $ name :List of 4
## $ cmyk :List of 6
## $ XYZ :List of 5
## $ image :List of 2
## $ contrast :List of 1
## $ _links :List of 1
## $ _embedded: Named list()You can create a data.frame from this list.
as.data.frame(col1[1:9])
## hex.value hex.clean rgb.fraction.r rgb.fraction.g rgb.fraction.b rgb.r rgb.g
## 1 #0047AB 0047AB 0 0.2784314 0.6705882 0 71
## rgb.b rgb.value hsl.fraction.h hsl.fraction.s hsl.fraction.l hsl.h
## 1 171 rgb(0, 71, 171) 0.5974659 1 0.3352941 215
## hsl.s hsl.l hsl.value hsv.fraction.h hsv.fraction.s hsv.fraction.v
## 1 100 34 hsl(215, 100%, 34%) 0.5974659 1 0.6705882
## hsv.value hsv.h hsv.s hsv.v name.value name.closest_named_hex
## 1 hsv(215, 100%, 67%) 215 100 67 Cobalt #0047AB
## name.exact_match_name name.distance cmyk.fraction.c cmyk.fraction.m
## 1 TRUE 0 1 0.5847953
## cmyk.fraction.y cmyk.fraction.k cmyk.value cmyk.c cmyk.m cmyk.y
## 1 0 0.3294118 cmyk(100, 58, 0, 33) 100 58 0
## cmyk.k XYZ.fraction.X XYZ.fraction.Y XYZ.fraction.Z XYZ.value XYZ.X
## 1 33 0.2206082 0.2475506 0.6705831 XYZ(22, 25, 67) 22
## XYZ.Y XYZ.Z image.bare
## 1 25 67 https://www.thecolorapi.com/id?format=svg&named=false&hex=0047AB
## image.named value
## 1 https://www.thecolorapi.com/id?format=svg&hex=0047AB #ffffffYou can get color names from different color convention, i.e. rgb, hsl or cmyk.
get_color_thecolorapi(rgb = paste(3,60,71, sep = ","))
## [1] "Blue Whale"
get_color_thecolorapi(hsl = paste("100","100%","34%", sep = ","))
## [1] "Limeade"
get_color_thecolorapi(cmyk = paste(50,58,0,33, sep = ","))
## [1] "Plump Purple"You can get color names from an existing list of colors using the closest named hex available.
library(scales)
library(purrr)
pal_hue <- scales::brewer_pal()(6)
pal_names <- purrr::map_chr(.x = pal_hue, .f = get_color_thecolorapi)
data.frame(
hex = pal_hue,
name = pal_names
)
## hex name
## 1 #EFF3FF Zircon
## 2 #C6DBEF Spindle
## 3 #9ECAE1 Regent St Blue
## 4 #6BAED6 Aqua Pearl
## 5 #3182BD Denim
## 6 #08519C Venice BlueYou can also get a color scheme (color palette) from any color.
pal <- get_color_thecolorapi_scheme(
hex = "0047AB",
count = 5,
mode = "monochrome",
return_name_only = FALSE)
#get closed color name available
# data.frame(
# hex = pal$colors$hex$value,
# name = pal$colors$name$value
# )
pal$colors$hex
## value clean
## 1 #01122A 01122A
## 2 #02285D 02285D
## 3 #023D8F 023D8F
## 4 #0252C3 0252C3
## 5 #0167F6 0167F6Note that when an invalid color name is used, the API return “#000000” (black color).
get_color_thecolorapi(hex = "InvalidColorReturnsBlack")
## [1] "Black"colornames.org API
get_color_colornames(hex = "3D290C")
## [1] "Swiss Dark Chocolate"The function get_color_colornames() can also return a dataframe using return_name_only = FALSE.
Note that the API returns hex codes as pure numbers, without a starting hashtag “#”
df <- get_color_colornames(hex = "3D290C", return_name_only = FALSE)
#add "#" back in beginning of each hex code
df$hexCode <- paste0("#", df$hexCode)
df
## hexCode name
## 1 #3d290c Swiss Dark ChocolateHex codes should always have 6 characters:
get_color_colornames(hex = "440154FF")You an also get an random color name:
get_color_colornames_random(return_name_only = FALSE)
## hexCode name
## 1 c2b4fc French Moon CoordYou can explore the latest 100 submissions:
latest_100 <- get_color_colornames_latest(return_name_only = FALSE)
head(latest_100)
## nameId hexCode name
## 1 5812612 5e65c3 Hazy Indigo Dreams
## 2 5812611 fbeee3 Pale Vampire Skin
## 3 5812610 f7e0cd Crusty Toenail Yellow
## 4 5812609 e7de7e Sunny Cotton Candy Yellow
## 5 5812608 4f2c94 Burple
## 6 5812607 115fae The Mathematician's SecretsYou can loop to get color names of a given palette:
library(scales)
library(purrr)
pal_hue <- scales::brewer_pal()(6)
pal_names <- purrr::map_chr(.x = pal_hue, .f = get_color_colornames)
data.frame(
hex = pal_hue,
name = pal_names
)
## hex name
## 1 #EFF3FF When I Remember You
## 2 #C6DBEF Cloud Initiation
## 3 #9ECAE1 <NA>
## 4 #6BAED6 <NA>
## 5 #3182BD <NA>
## 6 #08519C <NA>If color names are missing (like above), you can choose to give them a name.
If for some reason you want to use this color names database into production, you should be aware that the color names are potentially changing as anyone can vote anytime to change any color name. Therefore you should download a copy of the colornames database at a given time.
You can download the complete data and use it locally.
url_data <- "https://colornames.org/download/colornames.zip"
your_file_path <- paste0(getwd(), "/colornames-", Sys.Date(), ".zip")
download.file(url = url_data, destfile = your_file_path)
colornames_df <- readr::read_csv(your_file_path)
# Joke with hex codes 00000 to 00003
colornames_df# # A tibble: 3,157,757 × 3
# hex bestName votes
# <chr> <chr> <dbl>
# 1 000000 Dude Turn The Lights Back On 5351
# 2 000001 It's Still Basically Black 729
# 3 000002 Still Black 121
# 4 000003 So Close To Black It Hurts 145
# 5 000004 Blackerererer 27
# 6 000005 Jet Black Heart 16
# 7 000006 Abaddon 16
# 8 000007 Double O Seven 56
# 9 000008 Closed Eyes 26
# 10 000009 Really Dark Blue 29
# # ℹ 3,157,747 more rowsThis downloadable data is totally free of rights, under CC0 1.0.
color.pizza API
The color.pizza database is more stable as it is modified only by its core contributors.
You can get the name of of the closest color name with get_color_colorpizza().
get_color_colorpizza(hex = "#3D290C")
## [1] "Black Swan"You can access different information about a given color using return_name_only = FALSE.
get_color_colorpizza(hex = "#3D290C", return_name_only = FALSE)
## name hex rgb.r rgb.g rgb.b hsl.h hsl.s hsl.l lab.l lab.a
## 1 Black Swan #332200 51 34 0 40 100 10 14.8627 5.70118
## lab.b luminance luminanceWCAG bestContrast
## 1 21.82334 25.1168 0.01848 white
## swatchImg.svgNamed swatchImg.svg
## 1 /v1/swatch/?color=3d290c&name=Black%20Swan /v1/swatch/?color=3d290c
## requestedHex distance
## 1 #3d290c 2.90889You can get the color names from a unique source with “list” argument and avoid duplicated colors with “noduplicates”.
get_color_colorpizza(
hex = c("#3D290C","#1c2f11","#2e3f24"),
list = "wikipedia",
noduplicates = TRUE,
return_name_only = FALSE)
## name hex
## 1 Café Noir #4b3621
## 2 Phthalo Green #123524
## 3 Rifle Green #444c38
## link rgb.r rgb.g rgb.b
## 1 https://en.wikipedia.org/wiki/Coffee_(color)#Caf%C3%A9_Noir 75 54 33
## 2 https://en.wikipedia.org/wiki/Phthalocyanine_Green_G 18 53 36
## 3 https://en.wikipedia.org/wiki/Shades_of_green#Mint_green 68 76 56
## hsl.h hsl.s hsl.l lab.l lab.a lab.b luminance luminanceWCAG
## 1 30 38.88889 21.17647 24.64653 7.52734 17.00318 39.01021 0.04244
## 2 151 49.29577 13.92157 19.19804 -16.97218 6.79941 31.83870 0.02802
## 3 84 15.15152 25.88235 31.13019 -6.45902 10.80991 49.44063 0.06683
## bestContrast swatchImg.svgNamed
## 1 white /v1/swatch/?color=3d290c&name=Caf%C3%A9%20Noir
## 2 white /v1/swatch/?color=1c2f11&name=Phthalo%20Green
## 3 white /v1/swatch/?color=2e3f24&name=Rifle%20Green
## swatchImg.svg requestedHex distance
## 1 /v1/swatch/?color=3d290c #3d290c 5.21463
## 2 /v1/swatch/?color=1c2f11 #1c2f11 7.07137
## 3 /v1/swatch/?color=2e3f24 #2e3f24 6.79268You can get color names from an existing list of colors using the closest named hex available.
library(purrr)
library(scales)
pal_hue <- scales::brewer_pal()(6)
pal_hue_names <- get_color_colorpizza(hex = pal_hue)
data.frame(
hex = pal_hue,
name = pal_hue_names
)
## hex name
## 1 #EFF3FF Coconut White
## 2 #C6DBEF Arctic Rain
## 3 #9ECAE1 Legacy Blue
## 4 #6BAED6 Broom Butterfly Blue
## 5 #3182BD King Triton
## 6 #08519C USAFA Blue