#251F92#251F92

#251F92 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.178 H 274.0°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#251F92
RGB	rgb(37, 31, 146)
HSL	hsl(243, 65%, 35%)
HSV	hsv(243, 79%, 57%)
CMYK	cmyk(74.7%, 78.8%, 0%, 42.7%)
CIE-LAB	lab(21.76, 41.09, -61.35)
CIE-LCH	lch(21.76, 73.84, 303.82°)
OKLab	oklab(34.33% 0.0123 -0.1775)
OKLCH	oklch(34.33% 0.178 274)
XYZ	xyz(6.4395, 3.4480, 27.5147)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251F92 #8C921F

analogous

#1F5392 #251F92 #5E1F92

triadic

#251F92 #92251F #1F9225

tetradic

#251F92 #921F53 #8C921F #1F925E

square

#251F92 #921F53 #8C921F #1F925E

split-complementary

#251F92 #925E1F #53921F

monochromatic

#0B0A2D #181460 #251F92 #322AC4 #5851DA

Accessibility & contrast

On white

12.43

#251F92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#251F92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251F92

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251F92	#FFFFFF	#000000	##FFFFFF
##251F92	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003995

Deuteranopia (green-blind)

#002F90

Tritanopia (blue-blind)

#004258

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #251f92;
/* rgb */ color: rgb(37, 31, 146);
/* oklch */ color: oklch(34.3% 0.178 274.0);

Tailwind

colors: {
  custom: {
    50: '#725db3',
    500: '#251f92',
    950: '#000000',
  },
}

SCSS

$custom: #251f92;
$custom-light: #725db3;
$custom-dark: #000000;

JSON

{
  "hex": "#251f92",
  "rgb": {
    "r": 37,
    "g": 31,
    "b": 146
  },
  "hsl": {
    "h": 243.13,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.34332,
    "c": 0.1779,
    "h": 274
  },
  "luminance": 0.03449
}

Semantic roles & 50–950 ramp

primary

#251F92

secondary

#B8BD50

accent

#E840DF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #251F92

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

Preview Lab → · Contrast checker → · Palette generator →