#287D8B#287D8B

#287D8B is a mid, moderate teal. Relative luminance 0.170; OKLCH L 54.6% C 0.081 H 210.7°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#287D8B
RGB	rgb(40, 125, 139)
HSL	hsl(188, 55%, 35%)
HSV	hsv(188, 71%, 55%)
CMYK	cmyk(71.2%, 10.1%, 0%, 45.5%)
CIE-LAB	lab(48.24, -20.15, -14.93)
CIE-LCH	lch(48.24, 25.08, 216.54°)
OKLab	oklab(54.59% -0.07 -0.0415)
OKLCH	oklch(54.59% 0.081 210.7)
XYZ	xyz(12.8669, 16.9810, 27.0206)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D8B #8B3628

analogous

#288B68 #287D8B #284B8B

triadic

#287D8B #8B287D #7D8B28

tetradic

#287D8B #68288B #8B3628 #4B8B28

square

#287D8B #68288B #8B3628 #4B8B28

split-complementary

#287D8B #8B284B #8B6828

monochromatic

#0D282C #1A525B #287D8B #36A8BB #5DC0D0

Accessibility & contrast

On white

4.78

#287D8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#287D8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287D8B

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D8B	#FFFFFF	#000000	##FFFFFF
##287D8B	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71788C

Deuteranopia (green-blind)

#636E8B

Tritanopia (blue-blind)

#008381

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #287d8b;
/* rgb */ color: rgb(40, 125, 139);
/* oklch */ color: oklch(54.6% 0.081 210.7);

Tailwind

colors: {
  custom: {
    50: '#70a3ac',
    500: '#287d8b',
    950: '#000000',
  },
}

SCSS

$custom: #287d8b;
$custom-light: #70a3ac;
$custom-dark: #000000;

JSON

{
  "hex": "#287d8b",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 139
  },
  "hsl": {
    "h": 188.485,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.5459,
    "c": 0.08139,
    "h": 210.7
  },
  "luminance": 0.16982
}

Semantic roles & 50–950 ramp

primary

#287D8B

secondary

#B66659

accent

#5E49DF

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #287D8B

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

Preview Lab → · Contrast checker → · Palette generator →