#255681#255681

#255681 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.1% C 0.089 H 247.9°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#255681
RGB	rgb(37, 86, 129)
HSL	hsl(208, 55%, 33%)
HSV	hsv(208, 71%, 51%)
CMYK	cmyk(71.3%, 33.3%, 0%, 49.4%)
CIE-LAB	lab(35.27, -1.39, -28.98)
CIE-LCH	lch(35.27, 29.01, 267.26°)
OKLab	oklab(44.08% -0.0334 -0.0821)
OKLCH	oklch(44.08% 0.089 247.9)
XYZ	xyz(8.0517, 8.6330, 22.0066)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255681 #815025

analogous

#25817E #255681 #252881

triadic

#255681 #812556 #568125

tetradic

#255681 #7E2581 #815025 #288125

square

#255681 #7E2581 #815025 #288125

split-complementary

#255681 #812528 #817E25

monochromatic

#0A1722 #173651 #255681 #3376B1 #5394CE

Accessibility & contrast

On white

7.70

#255681 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#255681 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255681

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255681	#FFFFFF	#000000	##FFFFFF
##255681	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435883

Deuteranopia (green-blind)

#364F80

Tritanopia (blue-blind)

#006065

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #255681;
/* rgb */ color: rgb(37, 86, 129);
/* oklch */ color: oklch(44.1% 0.089 247.9);

Tailwind

colors: {
  custom: {
    50: '#6b85a6',
    500: '#255681',
    950: '#000000',
  },
}

SCSS

$custom: #255681;
$custom-light: #6b85a6;
$custom-dark: #000000;

JSON

{
  "hex": "#255681",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 129
  },
  "hsl": {
    "h": 208.043,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44077,
    "c": 0.08861,
    "h": 247.9
  },
  "luminance": 0.08634
}

Semantic roles & 50–950 ramp

primary

#255681

secondary

#B27E50

accent

#8F49DF

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #255681

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

Preview Lab → · Contrast checker → · Palette generator →