#255C81#255C81

#255C81 is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.6% C 0.083 H 241.5°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#255C81
RGB	rgb(37, 92, 129)
HSL	hsl(204, 55%, 33%)
HSV	hsv(204, 71%, 51%)
CMYK	cmyk(71.3%, 28.7%, 0%, 49.4%)
CIE-LAB	lab(37.17, -5.15, -25.99)
CIE-LCH	lch(37.17, 26.49, 258.79°)
OKLab	oklab(45.58% -0.0399 -0.0733)
OKLCH	oklch(45.58% 0.083 241.5)
XYZ	xyz(8.5510, 9.6317, 22.1731)
Luminance	0.0963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255C81 #814A25

analogous

#258178 #255C81 #252E81

triadic

#255C81 #81255C #5C8125

tetradic

#255C81 #782581 #814A25 #2E8125

square

#255C81 #782581 #814A25 #2E8125

split-complementary

#255C81 #81252E #817825

monochromatic

#0A1822 #173A51 #255C81 #337EB1 #539CCE

Accessibility & contrast

On white

7.18

#255C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#255C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255C81

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255C81	#FFFFFF	#000000	##FFFFFF
##255C81	1.00	7.18	2.93	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5C83

Deuteranopia (green-blind)

#3E5380

Tritanopia (blue-blind)

#006569

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #255c81;
/* rgb */ color: rgb(37, 92, 129);
/* oklch */ color: oklch(45.6% 0.083 241.5);

Tailwind

colors: {
  custom: {
    50: '#6b8aa5',
    500: '#255c81',
    950: '#000000',
  },
}

SCSS

$custom: #255c81;
$custom-light: #6b8aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#255c81",
  "rgb": {
    "r": 37,
    "g": 92,
    "b": 129
  },
  "hsl": {
    "h": 204.13,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.4558,
    "c": 0.08346,
    "h": 241.5
  },
  "luminance": 0.09633
}

Semantic roles & 50–950 ramp

primary

#255C81

secondary

#B27750

accent

#8549DF

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #255C81

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

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