#287E91#287E91

#287E91 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.1% C 0.084 H 215.7°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#287E91
RGB	rgb(40, 126, 145)
HSL	hsl(191, 57%, 36%)
HSV	hsv(191, 72%, 57%)
CMYK	cmyk(72.4%, 13.1%, 0%, 43.1%)
CIE-LAB	lab(48.78, -18.70, -17.63)
CIE-LCH	lch(48.78, 25.70, 223.31°)
OKLab	oklab(55.1% -0.0685 -0.0491)
OKLCH	oklch(55.1% 0.084 215.7)
XYZ	xyz(13.4446, 17.4156, 29.4356)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287E91 #913B28

analogous

#289170 #287E91 #284A91

triadic

#287E91 #91287E #7E9128

tetradic

#287E91 #702891 #913B28 #4A9128

square

#287E91 #702891 #913B28 #4A9128

split-complementary

#287E91 #91284A #917028

monochromatic

#0E2B31 #1B5461 #287E91 #35A8C1 #60BED3

Accessibility & contrast

On white

4.68

#287E91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#287E91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287E91

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287E91	#FFFFFF	#000000	##FFFFFF
##287E91	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#717A92

Deuteranopia (green-blind)

#626F91

Tritanopia (blue-blind)

#008584

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287e91;
/* rgb */ color: rgb(40, 126, 145);
/* oklch */ color: oklch(55.1% 0.084 215.7);

Tailwind

colors: {
  custom: {
    50: '#71a3b1',
    500: '#287e91',
    950: '#000000',
  },
}

SCSS

$custom: #287e91;
$custom-light: #71a3b1;
$custom-dark: #000000;

JSON

{
  "hex": "#287e91",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 145
  },
  "hsl": {
    "h": 190.857,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.55102,
    "c": 0.08431,
    "h": 215.7
  },
  "luminance": 0.17417
}

Semantic roles & 50–950 ramp

primary

#287E91

secondary

#B96D5C

accent

#6348E0

background

#F7FAFA

surface

#EDF4F5

border

#C8CECF

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #287E91

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

Preview Lab → · Contrast checker → · Palette generator →