#251D8D#251D8D

#251D8D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.174 H 274.8°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#251D8D
RGB	rgb(37, 29, 141)
HSL	hsl(244, 66%, 33%)
HSV	hsv(244, 79%, 55%)
CMYK	cmyk(73.8%, 79.4%, 0%, 44.7%)
CIE-LAB	lab(20.81, 40.53, -59.81)
CIE-LCH	lch(20.81, 72.25, 304.12°)
OKLab	oklab(33.5% 0.0144 -0.173)
OKLCH	oklch(33.5% 0.174 274.8)
XYZ	xyz(6.0084, 3.1945, 25.4941)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251D8D #858D1D

analogous

#1D4D8D #251D8D #5D1D8D

triadic

#251D8D #8D251D #1D8D25

tetradic

#251D8D #8D1D4D #858D1D #1D8D5D

square

#251D8D #8D1D4D #858D1D #1D8D5D

split-complementary

#251D8D #8D5D1D #4D8D1D

monochromatic

#0A0827 #18135A #251D8D #3227C0 #554BDA

Accessibility & contrast

On white

12.81

#251D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#251D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251D8D

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251D8D	#FFFFFF	#000000	##FFFFFF
##251D8D	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #251d8d;
/* rgb */ color: rgb(37, 29, 141);
/* oklch */ color: oklch(33.5% 0.174 274.8);

Tailwind

colors: {
  custom: {
    50: '#715cb0',
    500: '#251d8d',
    950: '#000000',
  },
}

SCSS

$custom: #251d8d;
$custom-light: #715cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#251d8d",
  "rgb": {
    "r": 37,
    "g": 29,
    "b": 141
  },
  "hsl": {
    "h": 244.286,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33499,
    "c": 0.17357,
    "h": 274.8
  },
  "luminance": 0.03195
}

Semantic roles & 50–950 ramp

primary

#251D8D

secondary

#B4BC4A

accent

#E93FDD

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #251D8D

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

Preview Lab → · Contrast checker → · Palette generator →