#251584#251584

#251584 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.170 H 276.9°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#251584
RGB	rgb(37, 21, 132)
HSL	hsl(249, 73%, 30%)
HSV	hsv(249, 84%, 52%)
CMYK	cmyk(72%, 84.1%, 0%, 48.2%)
CIE-LAB	lab(18.34, 41.72, -58.24)
CIE-LCH	lch(18.34, 71.64, 305.61°)
OKLab	oklab(31.48% 0.0204 -0.1683)
OKLCH	oklch(31.48% 0.17 276.9)
XYZ	xyz(5.1946, 2.5951, 22.0525)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251584 #748415

analogous

#153C84 #251584 #5D1584

triadic

#251584 #842515 #158425

tetradic

#251584 #84153C #748415 #15845D

square

#251584 #84153C #748415 #15845D

split-complementary

#251584 #845D15 #3C8415

monochromatic

#07041A #160D4F #251584 #341DB9 #4D35DF

Accessibility & contrast

On white

13.82

#251584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#251584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251584

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251584	#FFFFFF	#000000	##FFFFFF
##251584	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003187

Deuteranopia (green-blind)

#002882

Tritanopia (blue-blind)

#00384E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #251584;
/* rgb */ color: rgb(37, 21, 132);
/* oklch */ color: oklch(31.5% 0.170 276.9);

Tailwind

colors: {
  custom: {
    50: '#7057a9',
    500: '#251584',
    950: '#000000',
  },
}

SCSS

$custom: #251584;
$custom-light: #7057a9;
$custom-dark: #000000;

JSON

{
  "hex": "#251584",
  "rgb": {
    "r": 37,
    "g": 21,
    "b": 132
  },
  "hsl": {
    "h": 248.649,
    "s": 72.549,
    "l": 30
  },
  "oklch": {
    "l": 0.31475,
    "c": 0.16952,
    "h": 276.9
  },
  "luminance": 0.02596
}

Semantic roles & 50–950 ramp

primary

#251584

secondary

#A7B93C

accent

#EF39D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #251584

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

Preview Lab → · Contrast checker → · Palette generator →