#253D57#253D57

#253D57 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.055 H 251.4°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#253D57
RGB	rgb(37, 61, 87)
HSL	hsl(211, 40%, 24%)
HSV	hsv(211, 57%, 34%)
CMYK	cmyk(57.5%, 29.9%, 0%, 65.9%)
CIE-LAB	lab(25.01, -0.68, -18.46)
CIE-LCH	lch(25.01, 18.47, 267.89°)
OKLab	oklab(35.3% -0.0174 -0.0518)
OKLCH	oklch(35.3% 0.055 251.4)
XYZ	xyz(4.1514, 4.4186, 9.6491)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D57 #573F25

analogous

#255657 #253D57 #262557

triadic

#253D57 #57253D #3D5725

tetradic

#253D57 #572556 #573F25 #255726

square

#253D57 #572556 #573F25 #255726

split-complementary

#253D57 #572625 #565725

monochromatic

#090F15 #131F2C #253D57 #375B82 #4A79AD

Accessibility & contrast

On white

11.15

#253D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#253D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D57

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D57	#FFFFFF	#000000	##FFFFFF
##253D57	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E58

Deuteranopia (green-blind)

#2C3956

Tritanopia (blue-blind)

#094346

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #253d57;
/* rgb */ color: rgb(37, 61, 87);
/* oklch */ color: oklch(35.3% 0.055 251.4);

Tailwind

colors: {
  custom: {
    50: '#637286',
    500: '#253d57',
    950: '#000000',
  },
}

SCSS

$custom: #253d57;
$custom-light: #637286;
$custom-dark: #000000;

JSON

{
  "hex": "#253d57",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 87
  },
  "hsl": {
    "h": 211.2,
    "s": 40.323,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35296,
    "c": 0.05463,
    "h": 251.4
  },
  "luminance": 0.04419
}

Semantic roles & 50–950 ramp

primary

#253D57

secondary

#8A6D4D

accent

#9658D0

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #253D57

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

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