#251C8A#251C8A

#251C8A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.171 H 275.2°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#251C8A
RGB	rgb(37, 28, 138)
HSL	hsl(245, 66%, 33%)
HSV	hsv(245, 80%, 54%)
CMYK	cmyk(73.2%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(20.28, 40.08, -58.81)
CIE-LCH	lch(20.28, 71.17, 304.27°)
OKLab	oklab(33.03% 0.0156 -0.1701)
OKLCH	oklch(33.03% 0.171 275.2)
XYZ	xyz(5.7641, 3.0582, 24.3264)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251C8A #818A1C

analogous

#1C4A8A #251C8A #5C1C8A

triadic

#251C8A #8A251C #1C8A25

tetradic

#251C8A #8A1C4A #818A1C #1C8A5C

square

#251C8A #8A1C4A #818A1C #1C8A5C

split-complementary

#251C8A #8A5C1C #4A8A1C

monochromatic

#0A0724 #171257 #251C8A #3326BD #5347DA

Accessibility & contrast

On white

13.03

#251C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#251C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251C8A

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251C8A	#FFFFFF	#000000	##FFFFFF
##251C8A	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368D

Deuteranopia (green-blind)

#002C88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #251c8a;
/* rgb */ color: rgb(37, 28, 138);
/* oklch */ color: oklch(33.0% 0.171 275.2);

Tailwind

colors: {
  custom: {
    50: '#715bad',
    500: '#251c8a',
    950: '#000000',
  },
}

SCSS

$custom: #251c8a;
$custom-light: #715bad;
$custom-dark: #000000;

JSON

{
  "hex": "#251c8a",
  "rgb": {
    "r": 37,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 244.909,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33026,
    "c": 0.17078,
    "h": 275.2
  },
  "luminance": 0.03059
}

Semantic roles & 50–950 ramp

primary

#251C8A

secondary

#B2BB46

accent

#E93FDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #251C8A

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

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