#251DAC#251DAC

#251DAC is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.1% C 0.210 H 271.8°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#251DAC
RGB	rgb(37, 29, 172)
HSL	hsl(243, 71%, 39%)
HSV	hsv(243, 83%, 67%)
CMYK	cmyk(78.5%, 83.1%, 0%, 32.5%)
CIE-LAB	lab(24.48, 50.39, -72.71)
CIE-LCH	lch(24.48, 88.46, 304.72°)
OKLab	oklab(37.12% 0.0067 -0.2104)
OKLCH	oklch(37.12% 0.21 271.8)
XYZ	xyz(8.6462, 4.2496, 39.3863)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251DAC #A4AC1D

analogous

#1D5CAC #251DAC #6D1DAC

triadic

#251DAC #AC251D #1DAC25

tetradic

#251DAC #AC1D5C #A4AC1D #1DAC6D

square

#251DAC #AC1D5C #A4AC1D #1DAC6D

split-complementary

#251DAC #AC6D1D #5CAC1D

monochromatic

#0E0B43 #1A1478 #251DAC #352BDB #675FE4

Accessibility & contrast

On white

11.35

#251DAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#251DAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251DAC

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251DAC	#FFFFFF	#000000	##FFFFFF
##251DAC	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041B0

Deuteranopia (green-blind)

#0033AA

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #251dac;
/* rgb */ color: rgb(37, 29, 172);
/* oklch */ color: oklch(37.1% 0.210 271.8);

Tailwind

colors: {
  custom: {
    50: '#795ec6',
    500: '#251dac',
    950: '#000000',
  },
}

SCSS

$custom: #251dac;
$custom-light: #795ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#251dac",
  "rgb": {
    "r": 37,
    "g": 29,
    "b": 172
  },
  "hsl": {
    "h": 243.357,
    "s": 71.144,
    "l": 39.412
  },
  "oklch": {
    "l": 0.3712,
    "c": 0.21049,
    "h": 271.8
  },
  "luminance": 0.04251
}

Semantic roles & 50–950 ramp

primary

#251DAC

secondary

#C2C85C

accent

#EE3AE4

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #251DAC

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

Preview Lab → · Contrast checker → · Palette generator →