#255A7E#255A7E

#255A7E is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.9% C 0.081 H 241.6°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#255A7E
RGB	rgb(37, 90, 126)
HSL	hsl(204, 55%, 32%)
HSV	hsv(204, 71%, 49%)
CMYK	cmyk(70.6%, 28.6%, 0%, 50.6%)
CIE-LAB	lab(36.39, -5.02, -25.38)
CIE-LCH	lch(36.39, 25.87, 258.81°)
OKLab	oklab(44.91% -0.0387 -0.0716)
OKLCH	oklch(44.91% 0.081 241.6)
XYZ	xyz(8.1836, 9.2111, 21.0813)
Luminance	0.0921 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A7E #7E4925

analogous

#257E76 #255A7E #252D7E

triadic

#255A7E #7E255A #5A7E25

tetradic

#255A7E #76257E #7E4925 #2D7E25

square

#255A7E #76257E #7E4925 #2D7E25

split-complementary

#255A7E #7E252D #7E7625

monochromatic

#09161F #17384F #255A7E #337CAD #519ACC

Accessibility & contrast

On white

7.39

#255A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#255A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A7E

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A7E	#FFFFFF	#000000	##FFFFFF
##255A7E	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5A80

Deuteranopia (green-blind)

#3D527D

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #255a7e;
/* rgb */ color: rgb(37, 90, 126);
/* oklch */ color: oklch(44.9% 0.081 241.6);

Tailwind

colors: {
  custom: {
    50: '#6b88a3',
    500: '#255a7e',
    950: '#000000',
  },
}

SCSS

$custom: #255a7e;
$custom-light: #6b88a3;
$custom-dark: #000000;

JSON

{
  "hex": "#255a7e",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 126
  },
  "hsl": {
    "h": 204.27,
    "s": 54.601,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4491,
    "c": 0.08137,
    "h": 241.6
  },
  "luminance": 0.09212
}

Semantic roles & 50–950 ramp

primary

#255A7E

secondary

#B0764F

accent

#864ADE

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #255A7E

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

Preview Lab → · Contrast checker → · Palette generator →