#287D8A#287D8A

#287D8A is a mid, moderate teal. Relative luminance 0.170; OKLCH L 54.5% C 0.081 H 209.6°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#287D8A
RGB	rgb(40, 125, 138)
HSL	hsl(188, 55%, 35%)
HSV	hsv(188, 71%, 54%)
CMYK	cmyk(71%, 9.4%, 0%, 45.9%)
CIE-LAB	lab(48.20, -20.47, -14.40)
CIE-LCH	lch(48.20, 25.03, 215.12°)
OKLab	oklab(54.55% -0.0704 -0.04)
OKLCH	oklch(54.55% 0.081 209.6)
XYZ	xyz(12.7942, 16.9519, 26.6376)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D8A #8A3528

analogous

#288A66 #287D8A #284C8A

triadic

#287D8A #8A287D #7D8A28

tetradic

#287D8A #66288A #8A3528 #4C8A28

square

#287D8A #66288A #8A3528 #4C8A28

split-complementary

#287D8A #8A284C #8A6628

monochromatic

#0C272B #1A525B #287D8A #36A8B9 #5DC1D0

Accessibility & contrast

On white

4.78

#287D8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#287D8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287D8A

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D8A	#FFFFFF	#000000	##FFFFFF
##287D8A	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72788B

Deuteranopia (green-blind)

#646E8A

Tritanopia (blue-blind)

#008381

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #287d8a;
/* rgb */ color: rgb(40, 125, 138);
/* oklch */ color: oklch(54.5% 0.081 209.6);

Tailwind

colors: {
  custom: {
    50: '#70a3ac',
    500: '#287d8a',
    950: '#000000',
  },
}

SCSS

$custom: #287d8a;
$custom-light: #70a3ac;
$custom-dark: #000000;

JSON

{
  "hex": "#287d8a",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 138
  },
  "hsl": {
    "h": 187.959,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.54548,
    "c": 0.08102,
    "h": 209.6
  },
  "luminance": 0.16953
}

Semantic roles & 50–950 ramp

primary

#287D8A

secondary

#B56559

accent

#5D49DE

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #287D8A

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

Preview Lab → · Contrast checker → · Palette generator →