#251779#251779

#251779 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.154 H 278.5°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#251779
RGB	rgb(37, 23, 121)
HSL	hsl(249, 68%, 28%)
HSV	hsv(249, 81%, 47%)
CMYK	cmyk(69.4%, 81%, 0%, 52.5%)
CIE-LAB	lab(17.40, 37.19, -52.81)
CIE-LCH	lch(17.40, 64.59, 305.16°)
OKLab	oklab(30.44% 0.0227 -0.1525)
OKLCH	oklch(30.44% 0.154 278.5)
XYZ	xyz(4.5194, 2.3862, 18.3079)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251779 #6B7917

analogous

#173A79 #251779 #561779

triadic

#251779 #792517 #177925

tetradic

#251779 #79173A #6B7917 #177956

square

#251779 #79173A #6B7917 #177956

split-complementary

#251779 #795617 #3A7917

monochromatic

#08051A #150D46 #251779 #3521AC #4A32D8

Accessibility & contrast

On white

14.21

#251779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#251779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251779

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251779	#FFFFFF	#000000	##FFFFFF
##251779	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7C

Deuteranopia (green-blind)

#002777

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #251779;
/* rgb */ color: rgb(37, 23, 121);
/* oklch */ color: oklch(30.4% 0.154 278.5);

Tailwind

colors: {
  custom: {
    50: '#6d57a1',
    500: '#251779',
    950: '#000000',
  },
}

SCSS

$custom: #251779;
$custom-light: #6d57a1;
$custom-dark: #000000;

JSON

{
  "hex": "#251779",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 121
  },
  "hsl": {
    "h": 248.571,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30437,
    "c": 0.15421,
    "h": 278.5
  },
  "luminance": 0.02387
}

Semantic roles & 50–950 ramp

primary

#251779

secondary

#9EAE3E

accent

#EB3DD2

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #251779

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

Preview Lab → · Contrast checker → · Palette generator →