#251798#251798

#251798 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.1% C 0.192 H 274.1°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#251798
RGB	rgb(37, 23, 152)
HSL	hsl(247, 74%, 34%)
HSV	hsv(247, 85%, 60%)
CMYK	cmyk(75.7%, 84.9%, 0%, 40.4%)
CIE-LAB	lab(21.10, 46.98, -66.14)
CIE-LCH	lch(21.10, 81.12, 305.39°)
OKLab	oklab(34.09% 0.0137 -0.1912)
OKLCH	oklch(34.09% 0.192 274.1)
XYZ	xyz(6.7350, 3.2724, 29.9764)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251798 #8A9817

analogous

#174998 #251798 #661798

triadic

#251798 #982517 #179825

tetradic

#251798 #981749 #8A9817 #179866

square

#251798 #981749 #8A9817 #179866

split-complementary

#251798 #986617 #499817

monochromatic

#0B072E #180F63 #251798 #321FCD #5746E3

Accessibility & contrast

On white

12.69

#251798 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#251798 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251798

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251798	#FFFFFF	#000000	##FFFFFF
##251798	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00389B

Deuteranopia (green-blind)

#002D96

Tritanopia (blue-blind)

#00415A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #251798;
/* rgb */ color: rgb(37, 23, 152);
/* oklch */ color: oklch(34.1% 0.192 274.1);

Tailwind

colors: {
  custom: {
    50: '#7559b8',
    500: '#251798',
    950: '#000000',
  },
}

SCSS

$custom: #251798;
$custom-light: #7559b8;
$custom-dark: #000000;

JSON

{
  "hex": "#251798",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 152
  },
  "hsl": {
    "h": 246.512,
    "s": 73.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.34086,
    "c": 0.19172,
    "h": 274.1
  },
  "luminance": 0.03273
}

Semantic roles & 50–950 ramp

primary

#251798

secondary

#B7C447

accent

#F037DC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #251798

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

Preview Lab → · Contrast checker → · Palette generator →