#253D8A#253D8A

#253D8A is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.132 H 267.0°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#253D8A
RGB	rgb(37, 61, 138)
HSL	hsl(226, 58%, 34%)
HSV	hsv(226, 73%, 54%)
CMYK	cmyk(73.2%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(28.29, 18.86, -45.69)
CIE-LCH	lch(28.29, 49.43, 292.43°)
OKLab	oklab(38.87% -0.0069 -0.1315)
OKLCH	oklch(38.87% 0.132 267)
XYZ	xyz(7.0175, 5.5651, 24.7442)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D8A #8A7225

analogous

#25708A #253D8A #40258A

triadic

#253D8A #8A253D #3D8A25

tetradic

#253D8A #8A2570 #8A7225 #258A40

square

#253D8A #8A2570 #8A7225 #258A40

split-complementary

#253D8A #8A4025 #708A25

monochromatic

#0B1229 #18285A #253D8A #3252BA #5775D2

Accessibility & contrast

On white

9.94

#253D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#253D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D8A

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D8A	#FFFFFF	#000000	##FFFFFF
##253D8A	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488D

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253d8a;
/* rgb */ color: rgb(37, 61, 138);
/* oklch */ color: oklch(38.9% 0.132 267.0);

Tailwind

colors: {
  custom: {
    50: '#6e72ad',
    500: '#253d8a',
    950: '#000000',
  },
}

SCSS

$custom: #253d8a;
$custom-light: #6e72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#253d8a",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 225.743,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38873,
    "c": 0.13171,
    "h": 267
  },
  "luminance": 0.05566
}

Semantic roles & 50–950 ramp

primary

#253D8A

secondary

#B79F54

accent

#BC47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253D8A

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

Preview Lab → · Contrast checker → · Palette generator →