#251580#251580

#251580 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.0% C 0.165 H 277.5°. Best body text is #FFFFFF at 14.02:1 contrast (WCAG AA passes).

Color values

HEX	#251580
RGB	rgb(37, 21, 128)
HSL	hsl(249, 72%, 29%)
HSV	hsv(249, 84%, 50%)
CMYK	cmyk(71.1%, 83.6%, 0%, 49.8%)
CIE-LAB	lab(17.86, 40.46, -56.50)
CIE-LCH	lch(17.86, 69.49, 305.60°)
OKLab	oklab(31% 0.0216 -0.1632)
OKLCH	oklch(31% 0.165 277.5)
XYZ	xyz(4.9261, 2.4877, 20.6385)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251580 #708015

analogous

#153B80 #251580 #5B1580

triadic

#251580 #802515 #158025

tetradic

#251580 #80153B #708015 #15805B

square

#251580 #80153B #708015 #15805B

split-complementary

#251580 #805B15 #3B8015

monochromatic

#08041A #160C4B #251580 #341EB5 #4C32DD

Accessibility & contrast

On white

14.02

#251580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#251580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251580

14.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251580	#FFFFFF	#000000	##FFFFFF
##251580	1.00	14.02	1.50	14.02
#FFFFFF	14.02	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003083

Deuteranopia (green-blind)

#00277E

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #251580;
/* rgb */ color: rgb(37, 21, 128);
/* oklch */ color: oklch(31.0% 0.165 277.5);

Tailwind

colors: {
  custom: {
    50: '#6f56a6',
    500: '#251580',
    950: '#000000',
  },
}

SCSS

$custom: #251580;
$custom-light: #6f56a6;
$custom-dark: #000000;

JSON

{
  "hex": "#251580",
  "rgb": {
    "r": 37,
    "g": 21,
    "b": 128
  },
  "hsl": {
    "h": 248.972,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31002,
    "c": 0.16468,
    "h": 277.5
  },
  "luminance": 0.02488
}

Semantic roles & 50–950 ramp

primary

#251580

secondary

#A3B53C

accent

#EF39D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #251580

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

Preview Lab → · Contrast checker → · Palette generator →