#287D8E#287D8E

#287D8E is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.7% C 0.083 H 213.8°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#287D8E
RGB	rgb(40, 125, 142)
HSL	hsl(190, 56%, 36%)
HSV	hsv(190, 72%, 56%)
CMYK	cmyk(71.8%, 12%, 0%, 44.3%)
CIE-LAB	lab(48.35, -19.16, -16.53)
CIE-LCH	lch(48.35, 25.30, 220.78°)
OKLab	oklab(54.72% -0.0687 -0.046)
OKLCH	oklch(54.72% 0.083 213.8)
XYZ	xyz(13.0891, 17.0698, 28.1909)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D8E #8E3928

analogous

#288E6C #287D8E #284A8E

triadic

#287D8E #8E287D #7D8E28

tetradic

#287D8E #6C288E #8E3928 #4A8E28

square

#287D8E #6C288E #8E3928 #4A8E28

split-complementary

#287D8E #8E284A #8E6C28

monochromatic

#0D292F #1B535E #287D8E #35A7BE #5FBFD2

Accessibility & contrast

On white

4.76

#287D8E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#287D8E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287D8E

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D8E	#FFFFFF	#000000	##FFFFFF
##287D8E	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71798F

Deuteranopia (green-blind)

#626E8E

Tritanopia (blue-blind)

#008482

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287d8e;
/* rgb */ color: rgb(40, 125, 142);
/* oklch */ color: oklch(54.7% 0.083 213.8);

Tailwind

colors: {
  custom: {
    50: '#71a3af',
    500: '#287d8e',
    950: '#000000',
  },
}

SCSS

$custom: #287d8e;
$custom-light: #71a3af;
$custom-dark: #000000;

JSON

{
  "hex": "#287d8e",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 142
  },
  "hsl": {
    "h": 190,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.54717,
    "c": 0.0827,
    "h": 213.8
  },
  "luminance": 0.17071
}

Semantic roles & 50–950 ramp

primary

#287D8E

secondary

#B76A5B

accent

#6248DF

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #287D8E

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

Preview Lab → · Contrast checker → · Palette generator →