#251B60#251B60

#251B60 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 28.4% C 0.116 H 282.7°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#251B60
RGB	rgb(37, 27, 96)
HSL	hsl(249, 56%, 24%)
HSV	hsv(249, 72%, 38%)
CMYK	cmyk(61.5%, 71.9%, 0%, 62.4%)
CIE-LAB	lab(15.60, 26.34, -39.46)
CIE-LCH	lch(15.60, 47.44, 303.73°)
OKLab	oklab(28.37% 0.0255 -0.1135)
OKLCH	oklch(28.37% 0.116 282.7)
XYZ	xyz(3.2655, 2.0215, 11.2822)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251B60 #56601B

analogous

#1B3460 #251B60 #481B60

triadic

#251B60 #60251B #1B6025

tetradic

#251B60 #601B34 #56601B #1B6048

square

#251B60 #601B34 #56601B #1B6048

split-complementary

#251B60 #60481B #34601B

monochromatic

#090718 #130E30 #251B60 #372890 #4A36C0

Accessibility & contrast

On white

14.95

#251B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#251B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251B60

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251B60	#FFFFFF	#000000	##FFFFFF
##251B60	1.00	14.95	1.40	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002962

Deuteranopia (green-blind)

#00255F

Tritanopia (blue-blind)

#052D3B

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #251b60;
/* rgb */ color: rgb(37, 27, 96);
/* oklch */ color: oklch(28.4% 0.116 282.7);

Tailwind

colors: {
  custom: {
    50: '#67588e',
    500: '#251b60',
    950: '#000000',
  },
}

SCSS

$custom: #251b60;
$custom-light: #67588e;
$custom-dark: #000000;

JSON

{
  "hex": "#251b60",
  "rgb": {
    "r": 37,
    "g": 27,
    "b": 96
  },
  "hsl": {
    "h": 248.696,
    "s": 56.098,
    "l": 24.118
  },
  "oklch": {
    "l": 0.28366,
    "c": 0.11637,
    "h": 282.7
  },
  "luminance": 0.02022
}

Semantic roles & 50–950 ramp

primary

#251B60

secondary

#899641

accent

#DF48CA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #251B60

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

Preview Lab → · Contrast checker → · Palette generator →