Color & Design Utility API

Tools Freemium View on RapidAPI ↗

30+ color and design endpoints — hex/RGB/HSL/CMYK/Lab conversion, WCAG contrast checking, colorblind simulation, palette generation, accessibility suggestions.

1 subscribers
30 endpoints
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

Color & Design Utility API endpoints

MethodEndpointDescription
Color - Conversion
POST /api/color_css_to_hex
/api/color_css_to_hex 		Convert CSS named color to hex code (supports all 148 CSS named colors)
POST /api/color_hex_to_rgb
/api/color_hex_to_rgb 		Convert hex color code to RGB values
POST /api/color_rgb_to_hex
/api/color_rgb_to_hex 		Convert RGB values to hex color code
POST /api/color_hex_to_hsl
/api/color_hex_to_hsl 		Convert hex color code to HSL values
POST /api/color_hex_to_lab
/api/color_hex_to_lab 		Convert hex color to CIELAB color space (via RGB → XYZ → Lab, D65 illuminant)
POST /api/color_rgb_to_cmyk
/api/color_rgb_to_cmyk 		Convert RGB values to CMYK
POST /api/color_hsl_to_hex
/api/color_hsl_to_hex 		Convert HSL values to hex color code
Color - Palette
POST /api/color_random_palette
/api/color_random_palette 		Generate random harmonious palette using golden angle distribution
POST /api/color_tetradic
/api/color_tetradic 		Get tetradic/rectangular colors (rotate hue 90, 180, 270 degrees)
POST /api/color_split_complementary
/api/color_split_complementary 		Get split-complementary colors (rotate hue 150 and 210 degrees)
POST /api/color_analogous
/api/color_analogous 		Get analogous colors (rotate hue +/- 30 degrees)
POST /api/color_complementary
/api/color_complementary 		Get complementary color (rotate hue 180 degrees)
POST /api/color_triadic
/api/color_triadic 		Get triadic colors (rotate hue 120 and 240 degrees)
POST /api/color_monochromatic
/api/color_monochromatic 		Generate monochromatic palette (vary lightness, keep hue and saturation)
Color - Accessibility
POST /api/color_suggest_accessible
/api/color_suggest_accessible 		Suggest accessible text colors that pass WCAG AA for a given background color
POST /api/color_contrast_ratio
/api/color_contrast_ratio 		Calculate WCAG contrast ratio between two colors using relative luminance
POST /api/color_wcag_aaa_check
/api/color_wcag_aaa_check 		Check if two colors pass WCAG AAA (7:1 normal text, 4.5:1 large text)
POST /api/color_wcag_aa_check
/api/color_wcag_aa_check 		Check if two colors pass WCAG AA (4.5:1 normal text, 3:1 large text)
POST /api/color_simulate_colorblind
/api/color_simulate_colorblind 		Simulate how a color appears with colorblindness (protanopia, deuteranopia, tritanopia)
Color - Utility
POST /api/color_saturate
/api/color_saturate 		Increase saturation of a color by percentage
POST /api/color_gradient_generate
/api/color_gradient_generate 		Generate gradient steps between two colors
POST /api/color_name_from_hex
/api/color_name_from_hex 		Get closest CSS named color for a hex value
POST /api/color_temperature
/api/color_temperature 		Estimate color temperature (warm/cool/neutral based on hue)
POST /api/color_darken
/api/color_darken 		Darken a color by a percentage
POST /api/color_desaturate
/api/color_desaturate 		Decrease saturation of a color by percentage
POST /api/color_brightness
/api/color_brightness 		Calculate perceived brightness of a color (0-255)
POST /api/color_is_dark
/api/color_is_dark 		Determine if a color is dark or light (for text color decisions)
POST /api/color_invert
/api/color_invert 		Invert a color (each channel becomes 255 - value)
POST /api/color_blend
/api/color_blend 		Blend two colors together with adjustable weight
POST /api/color_lighten
/api/color_lighten 		Lighten a color by a percentage

Color & Design Utility API pricing

PlanPriceRate limitQuotas
BASIC Free —
  • Requests: 100 / monthly
PRO $9.99 / month —
  • Requests: 5,000 / monthly (then $0.0100 each)
ULTRA $29.99 / month —
  • Requests: 50,000 / monthly (then $0.0100 each)
MEGA $49.99 / month —
  • Requests: 500,000 / monthly (then $0.0100 each)

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