#251578#251578

#251578 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.155 H 279.0°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#251578
RGB	rgb(37, 21, 120)
HSL	hsl(250, 70%, 28%)
HSV	hsv(250, 83%, 47%)
CMYK	cmyk(69.2%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(16.92, 37.92, -52.96)
CIE-LCH	lch(16.92, 65.13, 305.60°)
OKLab	oklab(30.07% 0.0241 -0.1529)
OKLCH	oklch(30.07% 0.155 279)
XYZ	xyz(4.4202, 2.2853, 17.9738)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251578 #687815

analogous

#153678 #251578 #561578

triadic

#251578 #782515 #157825

tetradic

#251578 #781536 #687815 #157856

square

#251578 #781536 #687815 #157856

split-complementary

#251578 #785615 #367815

monochromatic

#08051A #150C44 #251578 #351EAC #492DDA

Accessibility & contrast

On white

14.41

#251578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#251578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251578

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251578	#FFFFFF	#000000	##FFFFFF
##251578	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7B

Deuteranopia (green-blind)

#002676

Tritanopia (blue-blind)

#003347

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #251578;
/* rgb */ color: rgb(37, 21, 120);
/* oklch */ color: oklch(30.1% 0.155 279.0);

Tailwind

colors: {
  custom: {
    50: '#6d56a0',
    500: '#251578',
    950: '#000000',
  },
}

SCSS

$custom: #251578;
$custom-light: #6d56a0;
$custom-dark: #000000;

JSON

{
  "hex": "#251578",
  "rgb": {
    "r": 37,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 249.697,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3007,
    "c": 0.15483,
    "h": 279
  },
  "luminance": 0.02286
}

Semantic roles & 50–950 ramp

primary

#251578

secondary

#9BAE3B

accent

#ED3BD0

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #251578

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

Preview Lab → · Contrast checker → · Palette generator →