#252B8A#252B8A

#252B8A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.3% C 0.155 H 272.6°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#252B8A
RGB	rgb(37, 43, 138)
HSL	hsl(236, 58%, 34%)
HSV	hsv(236, 73%, 54%)
CMYK	cmyk(73.2%, 68.8%, 0%, 45.9%)
CIE-LAB	lab(23.52, 31.05, -53.46)
CIE-LCH	lch(23.52, 61.83, 300.15°)
OKLab	oklab(35.34% 0.007 -0.1545)
OKLCH	oklch(35.34% 0.155 272.6)
XYZ	xyz(6.2127, 3.9554, 24.4759)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B8A #8A8425

analogous

#255E8A #252B8A #52258A

triadic

#252B8A #8A252B #2B8A25

tetradic

#252B8A #8A255E #8A8425 #258A52

square

#252B8A #8A255E #8A8425 #258A52

split-complementary

#252B8A #8A5225 #5E8A25

monochromatic

#0B0D29 #181C5A #252B8A #323ABA #575FD2

Accessibility & contrast

On white

11.72

#252B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#252B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B8A

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B8A	#FFFFFF	#000000	##FFFFFF
##252B8A	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8D

Deuteranopia (green-blind)

#003388

Tritanopia (blue-blind)

#004456

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #252b8a;
/* rgb */ color: rgb(37, 43, 138);
/* oklch */ color: oklch(35.3% 0.155 272.6);

Tailwind

colors: {
  custom: {
    50: '#6f64ad',
    500: '#252b8a',
    950: '#000000',
  },
}

SCSS

$custom: #252b8a;
$custom-light: #6f64ad;
$custom-dark: #000000;

JSON

{
  "hex": "#252b8a",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 138
  },
  "hsl": {
    "h": 236.436,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.35344,
    "c": 0.15469,
    "h": 272.6
  },
  "luminance": 0.03956
}

Semantic roles & 50–950 ramp

primary

#252B8A

secondary

#B7B154

accent

#D847E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #252B8A

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

Preview Lab → · Contrast checker → · Palette generator →