#287D8F#287D8F

#287D8F is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.8% C 0.083 H 214.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#287D8F
RGB	rgb(40, 125, 143)
HSL	hsl(190, 56%, 36%)
HSV	hsv(190, 72%, 56%)
CMYK	cmyk(72%, 12.6%, 0%, 43.9%)
CIE-LAB	lab(48.39, -18.83, -17.06)
CIE-LCH	lch(48.39, 25.41, 222.18°)
OKLab	oklab(54.76% -0.0683 -0.0475)
OKLCH	oklch(54.76% 0.083 214.8)
XYZ	xyz(13.1645, 17.1000, 28.5881)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D8F #8F3A28

analogous

#288F6D #287D8F #284A8F

triadic

#287D8F #8F287D #7D8F28

tetradic

#287D8F #6D288F #8F3A28 #4A8F28

square

#287D8F #6D288F #8F3A28 #4A8F28

split-complementary

#287D8F #8F284A #8F6D28

monochromatic

#0D292F #1B535F #287D8F #35A7BF #5FBED2

Accessibility & contrast

On white

4.75

#287D8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#287D8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287D8F

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D8F	#FFFFFF	#000000	##FFFFFF
##287D8F	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707990

Deuteranopia (green-blind)

#626E8F

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287d8f;
/* rgb */ color: rgb(40, 125, 143);
/* oklch */ color: oklch(54.8% 0.083 214.8);

Tailwind

colors: {
  custom: {
    50: '#71a3af',
    500: '#287d8f',
    950: '#000000',
  },
}

SCSS

$custom: #287d8f;
$custom-light: #71a3af;
$custom-dark: #000000;

JSON

{
  "hex": "#287d8f",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 143
  },
  "hsl": {
    "h": 190.485,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.5476,
    "c": 0.08319,
    "h": 214.8
  },
  "luminance": 0.17102
}

Semantic roles & 50–950 ramp

primary

#287D8F

secondary

#B86B5B

accent

#6348E0

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #287D8F

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

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