#251783#251783

#251783 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.167 H 276.8°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#251783
RGB	rgb(37, 23, 131)
HSL	hsl(248, 70%, 30%)
HSV	hsv(248, 82%, 51%)
CMYK	cmyk(71.8%, 82.4%, 0%, 48.6%)
CIE-LAB	lab(18.56, 40.42, -57.25)
CIE-LCH	lch(18.56, 70.08, 305.22°)
OKLab	oklab(31.59% 0.0198 -0.1655)
OKLCH	oklch(31.59% 0.167 276.8)
XYZ	xyz(5.1647, 2.6443, 21.7066)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251783 #758317

analogous

#173F83 #251783 #5B1783

triadic

#251783 #832517 #178325

tetradic

#251783 #83173F #758317 #17835B

square

#251783 #83173F #758317 #17835B

split-complementary

#251783 #835B17 #3F8317

monochromatic

#08051B #160E4F #251783 #3420B7 #4E38DC

Accessibility & contrast

On white

13.73

#251783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#251783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251783

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251783	#FFFFFF	#000000	##FFFFFF
##251783	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002981

Tritanopia (blue-blind)

#00384D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #251783;
/* rgb */ color: rgb(37, 23, 131);
/* oklch */ color: oklch(31.6% 0.167 276.8);

Tailwind

colors: {
  custom: {
    50: '#6f58a8',
    500: '#251783',
    950: '#000000',
  },
}

SCSS

$custom: #251783;
$custom-light: #6f58a8;
$custom-dark: #000000;

JSON

{
  "hex": "#251783",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 131
  },
  "hsl": {
    "h": 247.778,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31589,
    "c": 0.16663,
    "h": 276.8
  },
  "luminance": 0.02645
}

Semantic roles & 50–950 ramp

primary

#251783

secondary

#A8B73F

accent

#ED3BD6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #251783

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

Preview Lab → · Contrast checker → · Palette generator →