#251C8F#251C8F

#251C8F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.177 H 274.6°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#251C8F
RGB	rgb(37, 28, 143)
HSL	hsl(245, 67%, 34%)
HSV	hsv(245, 80%, 56%)
CMYK	cmyk(74.1%, 80.4%, 0%, 43.9%)
CIE-LAB	lab(20.85, 41.72, -60.98)
CIE-LCH	lch(20.85, 73.88, 304.38°)
OKLab	oklab(33.6% 0.0143 -0.1764)
OKLCH	oklch(33.6% 0.177 274.6)
XYZ	xyz(6.1345, 3.2064, 26.2769)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251C8F #868F1C

analogous

#1C4C8F #251C8F #5E1C8F

triadic

#251C8F #8F251C #1C8F25

tetradic

#251C8F #8F1C4C #868F1C #1C8F5E

square

#251C8F #8F1C4C #868F1C #1C8F5E

split-complementary

#251C8F #8F5E1C #4C8F1C

monochromatic

#0B0829 #18125C #251C8F #3226C2 #554ADC

Accessibility & contrast

On white

12.79

#251C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#251C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251C8F

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251C8F	#FFFFFF	#000000	##FFFFFF
##251C8F	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003792

Deuteranopia (green-blind)

#002D8D

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #251c8f;
/* rgb */ color: rgb(37, 28, 143);
/* oklch */ color: oklch(33.6% 0.177 274.6);

Tailwind

colors: {
  custom: {
    50: '#725bb1',
    500: '#251c8f',
    950: '#000000',
  },
}

SCSS

$custom: #251c8f;
$custom-light: #725bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#251c8f",
  "rgb": {
    "r": 37,
    "g": 28,
    "b": 143
  },
  "hsl": {
    "h": 244.696,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33598,
    "c": 0.17694,
    "h": 274.6
  },
  "luminance": 0.03207
}

Semantic roles & 50–950 ramp

primary

#251C8F

secondary

#B4BE49

accent

#EA3EDD

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #251C8F

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

Preview Lab → · Contrast checker → · Palette generator →