#287B8D#287B8D

#287B8D is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.2% C 0.082 H 215.2°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#287B8D
RGB	rgb(40, 123, 141)
HSL	hsl(191, 56%, 35%)
HSV	hsv(191, 72%, 55%)
CMYK	cmyk(71.6%, 12.8%, 0%, 44.7%)
CIE-LAB	lab(47.67, -18.41, -16.97)
CIE-LCH	lch(47.67, 25.04, 222.66°)
OKLab	oklab(54.16% -0.067 -0.0473)
OKLCH	oklch(54.16% 0.082 215.2)
XYZ	xyz(12.7637, 16.5387, 27.7137)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287B8D #8D3A28

analogous

#288D6C #287B8D #28488D

triadic

#287B8D #8D287B #7B8D28

tetradic

#287B8D #6C288D #8D3A28 #488D28

square

#287B8D #6C288D #8D3A28 #488D28

split-complementary

#287B8D #8D2848 #8D6C28

monochromatic

#0D282E #1A515D #287B8D #36A5BD #5EBDD1

Accessibility & contrast

On white

4.87

#287B8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#287B8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287B8D

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287B8D	#FFFFFF	#000000	##FFFFFF
##287B8D	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E778E

Deuteranopia (green-blind)

#606D8D

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #287b8d;
/* rgb */ color: rgb(40, 123, 141);
/* oklch */ color: oklch(54.2% 0.082 215.2);

Tailwind

colors: {
  custom: {
    50: '#71a1ae',
    500: '#287b8d',
    950: '#000000',
  },
}

SCSS

$custom: #287b8d;
$custom-light: #71a1ae;
$custom-dark: #000000;

JSON

{
  "hex": "#287b8d",
  "rgb": {
    "r": 40,
    "g": 123,
    "b": 141
  },
  "hsl": {
    "h": 190.693,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.54162,
    "c": 0.08199,
    "h": 215.2
  },
  "luminance": 0.1654
}

Semantic roles & 50–950 ramp

primary

#287B8D

secondary

#B76B5A

accent

#6349DF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #287B8D

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

Preview Lab → · Contrast checker → · Palette generator →