#255D81#255D81

#255D81 is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 45.8% C 0.083 H 240.3°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#255D81
RGB	rgb(37, 93, 129)
HSL	hsl(203, 55%, 33%)
HSV	hsv(203, 71%, 51%)
CMYK	cmyk(71.3%, 27.9%, 0%, 49.4%)
CIE-LAB	lab(37.49, -5.77, -25.49)
CIE-LCH	lch(37.49, 26.13, 257.25°)
OKLab	oklab(45.83% -0.041 -0.0719)
OKLCH	oklch(45.83% 0.083 240.3)
XYZ	xyz(8.6382, 9.8061, 22.2021)
Luminance	0.0981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D81 #814925

analogous

#258177 #255D81 #252F81

triadic

#255D81 #81255D #5D8125

tetradic

#255D81 #772581 #814925 #2F8125

square

#255D81 #772581 #814925 #2F8125

split-complementary

#255D81 #81252F #817725

monochromatic

#0A1822 #173B51 #255D81 #337FB1 #539ECE

Accessibility & contrast

On white

7.09

#255D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#255D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255D81

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D81	#FFFFFF	#000000	##FFFFFF
##255D81	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5D83

Deuteranopia (green-blind)

#405480

Tritanopia (blue-blind)

#006669

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255d81;
/* rgb */ color: rgb(37, 93, 129);
/* oklch */ color: oklch(45.8% 0.083 240.3);

Tailwind

colors: {
  custom: {
    50: '#6b8aa5',
    500: '#255d81',
    950: '#000000',
  },
}

SCSS

$custom: #255d81;
$custom-light: #6b8aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#255d81",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 129
  },
  "hsl": {
    "h": 203.478,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.45833,
    "c": 0.08272,
    "h": 240.3
  },
  "luminance": 0.09807
}

Semantic roles & 50–950 ramp

primary

#255D81

secondary

#B27650

accent

#8449DF

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #255D81

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

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