#252A8B#252A8B

#252A8B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.3% C 0.157 H 272.8°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#252A8B
RGB	rgb(37, 42, 139)
HSL	hsl(237, 58%, 35%)
HSV	hsv(237, 73%, 55%)
CMYK	cmyk(73.4%, 69.8%, 0%, 45.5%)
CIE-LAB	lab(23.38, 32.06, -54.32)
CIE-LCH	lch(23.38, 63.08, 300.55°)
OKLab	oklab(35.27% 0.0076 -0.157)
OKLCH	oklch(35.27% 0.157 272.8)
XYZ	xyz(6.2495, 3.9127, 24.8470)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252A8B #8B8625

analogous

#255D8B #252A8B #53258B

triadic

#252A8B #8B252A #2A8B25

tetradic

#252A8B #8B255D #8B8625 #258B53

square

#252A8B #8B255D #8B8625 #258B53

split-complementary

#252A8B #8B5325 #5D8B25

monochromatic

#0B0D2A #181B5B #252A8B #3239BB #585ED3

Accessibility & contrast

On white

11.78

#252A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#252A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252A8B

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252A8B	#FFFFFF	#000000	##FFFFFF
##252A8B	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003389

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #252a8b;
/* rgb */ color: rgb(37, 42, 139);
/* oklch */ color: oklch(35.3% 0.157 272.8);

Tailwind

colors: {
  custom: {
    50: '#7064ae',
    500: '#252a8b',
    950: '#000000',
  },
}

SCSS

$custom: #252a8b;
$custom-light: #7064ae;
$custom-dark: #000000;

JSON

{
  "hex": "#252a8b",
  "rgb": {
    "r": 37,
    "g": 42,
    "b": 139
  },
  "hsl": {
    "h": 237.059,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.3527,
    "c": 0.15722,
    "h": 272.8
  },
  "luminance": 0.03913
}

Semantic roles & 50–950 ramp

primary

#252A8B

secondary

#B7B255

accent

#DA47E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090510

muted

#7B7A7F

Preview Lab

Preview with #252A8B

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

Preview Lab → · Contrast checker → · Palette generator →