#251878#251878

#251878 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.152 H 278.5°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#251878
RGB	rgb(37, 24, 120)
HSL	hsl(248, 67%, 28%)
HSV	hsv(248, 80%, 47%)
CMYK	cmyk(69.2%, 80%, 0%, 52.9%)
CIE-LAB	lab(17.47, 36.32, -52.04)
CIE-LCH	lch(17.47, 63.47, 304.91°)
OKLab	oklab(30.46% 0.0224 -0.1503)
OKLCH	oklch(30.46% 0.152 278.5)
XYZ	xyz(4.4787, 2.4023, 17.9933)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251878 #6B7818

analogous

#183B78 #251878 #551878

triadic

#251878 #782518 #187825

tetradic

#251878 #78183B #6B7818 #187855

square

#251878 #78183B #6B7818 #187855

split-complementary

#251878 #785518 #3B7818

monochromatic

#08051A #150E45 #251878 #3522AB #4A34D6

Accessibility & contrast

On white

14.18

#251878 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#251878 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251878

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251878	#FFFFFF	#000000	##FFFFFF
##251878	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7B

Deuteranopia (green-blind)

#002776

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #251878;
/* rgb */ color: rgb(37, 24, 120);
/* oklch */ color: oklch(30.5% 0.152 278.5);

Tailwind

colors: {
  custom: {
    50: '#6d57a0',
    500: '#251878',
    950: '#000000',
  },
}

SCSS

$custom: #251878;
$custom-light: #6d57a0;
$custom-dark: #000000;

JSON

{
  "hex": "#251878",
  "rgb": {
    "r": 37,
    "g": 24,
    "b": 120
  },
  "hsl": {
    "h": 248.125,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30455,
    "c": 0.15198,
    "h": 278.5
  },
  "luminance": 0.02403
}

Semantic roles & 50–950 ramp

primary

#251878

secondary

#9EAD3F

accent

#EA3ED2

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #251878

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

Preview Lab → · Contrast checker → · Palette generator →