#252E57#252E57

#252E57 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.6% C 0.074 H 272.2°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#252E57
RGB	rgb(37, 46, 87)
HSL	hsl(229, 40%, 24%)
HSV	hsv(229, 57%, 34%)
CMYK	cmyk(57.5%, 47.1%, 0%, 65.9%)
CIE-LAB	lab(20.18, 9.74, -26.06)
CIE-LCH	lch(20.18, 27.82, 290.49°)
OKLab	oklab(31.55% 0.0029 -0.074)
OKLCH	oklch(31.55% 0.074 272.2)
XYZ	xyz(3.4597, 3.0352, 9.4185)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252E57 #574E25

analogous

#254757 #252E57 #352557

triadic

#252E57 #57252E #2E5725

tetradic

#252E57 #572547 #574E25 #255735

square

#252E57 #572547 #574E25 #255735

split-complementary

#252E57 #573525 #475725

monochromatic

#090B15 #13172C #252E57 #374582 #4A5BAD

Accessibility & contrast

On white

13.07

#252E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#252E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252E57

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252E57	#FFFFFF	#000000	##FFFFFF
##252E57	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3359

Deuteranopia (green-blind)

#172F56

Tritanopia (blue-blind)

#0D373E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #252e57;
/* rgb */ color: rgb(37, 46, 87);
/* oklch */ color: oklch(31.6% 0.074 272.2);

Tailwind

colors: {
  custom: {
    50: '#646686',
    500: '#252e57',
    950: '#000000',
  },
}

SCSS

$custom: #252e57;
$custom-light: #646686;
$custom-dark: #000000;

JSON

{
  "hex": "#252e57",
  "rgb": {
    "r": 37,
    "g": 46,
    "b": 87
  },
  "hsl": {
    "h": 229.2,
    "s": 40.323,
    "l": 24.314
  },
  "oklch": {
    "l": 0.31552,
    "c": 0.07409,
    "h": 272.2
  },
  "luminance": 0.03035
}

Semantic roles & 50–950 ramp

primary

#252E57

secondary

#8A7F4D

accent

#BA58D0

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06050B

muted

#7A7A7C

Preview Lab

Preview with #252E57

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

Preview Lab → · Contrast checker → · Palette generator →