#251DA7#251DA7

#251DA7 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.5% C 0.205 H 272.2°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#251DA7
RGB	rgb(37, 29, 167)
HSL	hsl(243, 70%, 38%)
HSV	hsv(243, 83%, 65%)
CMYK	cmyk(77.8%, 82.6%, 0%, 34.5%)
CIE-LAB	lab(23.87, 48.84, -70.70)
CIE-LCH	lch(23.87, 85.93, 304.64°)
OKLab	oklab(36.53% 0.008 -0.2046)
OKLCH	oklch(36.53% 0.205 272.2)
XYZ	xyz(8.1750, 4.0612, 36.9048)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251DA7 #9FA71D

analogous

#1D5AA7 #251DA7 #6A1DA7

triadic

#251DA7 #A7251D #1DA725

tetradic

#251DA7 #A71D5A #9FA71D #1DA76A

square

#251DA7 #A71D5A #9FA71D #1DA76A

split-complementary

#251DA7 #A76A1D #5AA71D

monochromatic

#0E0B3F #191473 #251DA7 #3228DA #645CE3

Accessibility & contrast

On white

11.59

#251DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#251DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251DA7

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251DA7	#FFFFFF	#000000	##FFFFFF
##251DA7	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAB

Deuteranopia (green-blind)

#0032A5

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #251da7;
/* rgb */ color: rgb(37, 29, 167);
/* oklch */ color: oklch(36.5% 0.205 272.2);

Tailwind

colors: {
  custom: {
    50: '#785dc3',
    500: '#251da7',
    950: '#000000',
  },
}

SCSS

$custom: #251da7;
$custom-light: #785dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#251da7",
  "rgb": {
    "r": 37,
    "g": 29,
    "b": 167
  },
  "hsl": {
    "h": 243.478,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.36525,
    "c": 0.20472,
    "h": 272.2
  },
  "luminance": 0.04062
}

Semantic roles & 50–950 ramp

primary

#251DA7

secondary

#C0C759

accent

#ED3BE3

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #251DA7

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

Preview Lab → · Contrast checker → · Palette generator →