#253F88#253F88

#253F88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.126 H 266.0°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#253F88
RGB	rgb(37, 63, 136)
HSL	hsl(224, 57%, 34%)
HSV	hsv(224, 73%, 53%)
CMYK	cmyk(72.8%, 53.7%, 0%, 46.7%)
CIE-LAB	lab(28.71, 16.70, -43.77)
CIE-LCH	lch(28.71, 46.85, 290.89°)
OKLab	oklab(39.14% -0.0089 -0.1258)
OKLCH	oklch(39.14% 0.126 266)
XYZ	xyz(6.9828, 5.7252, 24.0248)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F88 #886E25

analogous

#257188 #253F88 #3D2588

triadic

#253F88 #88253F #3F8825

tetradic

#253F88 #882571 #886E25 #25883D

square

#253F88 #882571 #886E25 #25883D

split-complementary

#253F88 #883D25 #718825

monochromatic

#0B1228 #182958 #253F88 #3255B8 #5677D1

Accessibility & contrast

On white

9.79

#253F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#253F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F88

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F88	#FFFFFF	#000000	##FFFFFF
##253F88	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F488B

Deuteranopia (green-blind)

#003F87

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #253f88;
/* rgb */ color: rgb(37, 63, 136);
/* oklch */ color: oklch(39.1% 0.126 266.0);

Tailwind

colors: {
  custom: {
    50: '#6d73ab',
    500: '#253f88',
    950: '#000000',
  },
}

SCSS

$custom: #253f88;
$custom-light: #6d73ab;
$custom-dark: #000000;

JSON

{
  "hex": "#253f88",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 136
  },
  "hsl": {
    "h": 224.242,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39144,
    "c": 0.12616,
    "h": 266
  },
  "luminance": 0.05726
}

Semantic roles & 50–950 ramp

primary

#253F88

secondary

#B69C53

accent

#B847E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #253F88

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

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