#4287D7#4287D7

#4287D7 is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.7% C 0.140 H 253.8°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#4287D7
RGB	rgb(66, 135, 215)
HSL	hsl(212, 65%, 55%)
HSV	hsv(212, 69%, 84%)
CMYK	cmyk(69.3%, 37.2%, 0%, 15.7%)
CIE-LAB	lab(55.47, 4.28, -47.37)
CIE-LCH	lch(55.47, 47.56, 275.17°)
OKLab	oklab(61.68% -0.039 -0.1348)
OKLCH	oklch(61.68% 0.14 253.8)
XYZ	xyz(23.1720, 23.3900, 67.5703)
Luminance	0.2339 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287D7 #D79242

analogous

#42D1D7 #4287D7 #4742D7

triadic

#4287D7 #D74287 #87D742

tetradic

#4287D7 #D742D1 #D79242 #42D747

square

#4287D7 #D742D1 #D79242 #42D747

split-complementary

#4287D7 #D74742 #D1D742

monochromatic

#1C4B83 #2669B5 #4287D7 #75A7E2 #A7C7EC

Accessibility & contrast

On white

3.70

#4287D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#4287D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287D7

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287D7	#FFFFFF	#000000	##000000
##4287D7	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638CDA

Deuteranopia (green-blind)

#4D7ED5

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4287d7;
/* rgb */ color: rgb(66, 135, 215);
/* oklch */ color: oklch(61.7% 0.140 253.8);

Tailwind

colors: {
  custom: {
    50: '#87a9e4',
    500: '#4287d7',
    950: '#000000',
  },
}

SCSS

$custom: #4287d7;
$custom-light: #87a9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4287d7",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 215
  },
  "hsl": {
    "h": 212.215,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.61677,
    "c": 0.14031,
    "h": 253.8
  },
  "luminance": 0.23392
}

Semantic roles & 50–950 ramp

primary

#4287D7

secondary

#DABD9B

accent

#9A40E8

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #4287D7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →