#251771#251771

#251771 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.144 H 280.0°. Best body text is #FFFFFF at 14.59:1 contrast (WCAG AA passes).

Color values

HEX	#251771
RGB	rgb(37, 23, 113)
HSL	hsl(249, 66%, 27%)
HSV	hsv(249, 80%, 44%)
CMYK	cmyk(67.3%, 79.6%, 0%, 55.7%)
CIE-LAB	lab(16.49, 34.57, -49.14)
CIE-LCH	lch(16.49, 60.08, 305.12°)
OKLab	oklab(29.54% 0.025 -0.1418)
OKLCH	oklch(29.54% 0.144 280)
XYZ	xyz(4.0490, 2.1980, 15.8305)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251771 #637117

analogous

#173671 #251771 #521771

triadic

#251771 #712517 #177125

tetradic

#251771 #711736 #637117 #177152

square

#251771 #711736 #637117 #177152

split-complementary

#251771 #715217 #367117

monochromatic

#080519 #140D3E #251771 #3621A4 #482ED4

Accessibility & contrast

On white

14.59

#251771 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#251771 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251771

14.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251771	#FFFFFF	#000000	##FFFFFF
##251771	1.00	14.59	1.44	14.59
#FFFFFF	14.59	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C74

Deuteranopia (green-blind)

#00256F

Tritanopia (blue-blind)

#003143

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #251771;
/* rgb */ color: rgb(37, 23, 113);
/* oklch */ color: oklch(29.5% 0.144 280.0);

Tailwind

colors: {
  custom: {
    50: '#6b569b',
    500: '#251771',
    950: '#000000',
  },
}

SCSS

$custom: #251771;
$custom-light: #6b569b;
$custom-dark: #000000;

JSON

{
  "hex": "#251771",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 113
  },
  "hsl": {
    "h": 249.333,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29537,
    "c": 0.14403,
    "h": 280
  },
  "luminance": 0.02198
}

Semantic roles & 50–950 ramp

primary

#251771

secondary

#96A73D

accent

#E93FCF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #251771

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

Preview Lab → · Contrast checker → · Palette generator →