#287AAB#287AAB

#287AAB is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.4% C 0.108 H 239.7°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#287AAB
RGB	rgb(40, 122, 171)
HSL	hsl(202, 62%, 41%)
HSV	hsv(202, 77%, 67%)
CMYK	cmyk(76.6%, 28.7%, 0%, 32.9%)
CIE-LAB	lab(48.65, -7.36, -33.04)
CIE-LCH	lch(48.65, 33.84, 257.44°)
OKLab	oklab(55.36% -0.0546 -0.0934)
OKLCH	oklch(55.36% 0.108 239.7)
XYZ	xyz(15.1824, 17.3087, 41.0609)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287AAB #AB5928

analogous

#28AB9B #287AAB #2839AB

triadic

#287AAB #AB287A #7AAB28

tetradic

#287AAB #9B28AB #AB5928 #39AB28

square

#287AAB #9B28AB #AB5928 #39AB28

split-complementary

#287AAB #AB2839 #AB9B28

monochromatic

#113348 #1C5779 #287AAB #3E9BD2 #70B5DE

Accessibility & contrast

On white

4.71

#287AAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#287AAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287AAB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287AAB	#FFFFFF	#000000	##FFFFFF
##287AAB	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAD

Deuteranopia (green-blind)

#516EAA

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287aab;
/* rgb */ color: rgb(40, 122, 171);
/* oklch */ color: oklch(55.4% 0.108 239.7);

Tailwind

colors: {
  custom: {
    50: '#75a0c4',
    500: '#287aab',
    950: '#000000',
  },
}

SCSS

$custom: #287aab;
$custom-light: #75a0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#287aab",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 171
  },
  "hsl": {
    "h": 202.443,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55363,
    "c": 0.1082,
    "h": 239.7
  },
  "luminance": 0.1731
}

Semantic roles & 50–950 ramp

primary

#287AAB

secondary

#C48C6A

accent

#7F43E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #287AAB

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

Preview Lab → · Contrast checker → · Palette generator →