#251599#251599

#251599 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 34.0% C 0.194 H 274.1°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#251599
RGB	rgb(37, 21, 153)
HSL	hsl(247, 76%, 34%)
HSV	hsv(247, 86%, 60%)
CMYK	cmyk(75.8%, 86.3%, 0%, 40%)
CIE-LAB	lab(20.94, 48.14, -67.03)
CIE-LCH	lch(20.94, 82.52, 305.69°)
OKLab	oklab(34.01% 0.014 -0.1938)
OKLCH	oklch(34.01% 0.194 274.1)
XYZ	xyz(6.7790, 3.2289, 30.3968)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251599 #899915

analogous

#154799 #251599 #671599

triadic

#251599 #992515 #159925

tetradic

#251599 #991547 #899915 #159967

square

#251599 #991547 #899915 #159967

split-complementary

#251599 #996715 #479915

monochromatic

#0B062D #180E63 #251599 #321CCF #5743E5

Accessibility & contrast

On white

12.76

#251599 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#251599 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251599

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251599	#FFFFFF	#000000	##FFFFFF
##251599	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00389C

Deuteranopia (green-blind)

#002C97

Tritanopia (blue-blind)

#00415A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #251599;
/* rgb */ color: rgb(37, 21, 153);
/* oklch */ color: oklch(34.0% 0.194 274.1);

Tailwind

colors: {
  custom: {
    50: '#7558b8',
    500: '#251599',
    950: '#000000',
  },
}

SCSS

$custom: #251599;
$custom-light: #7558b8;
$custom-dark: #000000;

JSON

{
  "hex": "#251599",
  "rgb": {
    "r": 37,
    "g": 21,
    "b": 153
  },
  "hsl": {
    "h": 247.273,
    "s": 75.862,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34008,
    "c": 0.19427,
    "h": 274.1
  },
  "luminance": 0.0323
}

Semantic roles & 50–950 ramp

primary

#251599

secondary

#B6C644

accent

#F235DC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #251599

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

Preview Lab → · Contrast checker → · Palette generator →