#251797#251797

#251797 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 34.0% C 0.191 H 274.2°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#251797
RGB	rgb(37, 23, 151)
HSL	hsl(247, 74%, 34%)
HSV	hsv(247, 85%, 59%)
CMYK	cmyk(75.5%, 84.8%, 0%, 40.8%)
CIE-LAB	lab(20.98, 46.67, -65.73)
CIE-LCH	lch(20.98, 80.61, 305.38°)
OKLab	oklab(33.97% 0.014 -0.19)
OKLCH	oklch(33.97% 0.191 274.2)
XYZ	xyz(6.6534, 3.2398, 29.5469)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251797 #899717

analogous

#174997 #251797 #651797

triadic

#251797 #972517 #179725

tetradic

#251797 #971749 #899717 #179765

square

#251797 #971749 #899717 #179765

split-complementary

#251797 #976517 #499717

monochromatic

#0B072D #180F62 #251797 #321FCC #5746E3

Accessibility & contrast

On white

12.74

#251797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#251797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251797

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251797	#FFFFFF	#000000	##FFFFFF
##251797	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00389A

Deuteranopia (green-blind)

#002C95

Tritanopia (blue-blind)

#004159

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #251797;
/* rgb */ color: rgb(37, 23, 151);
/* oklch */ color: oklch(34.0% 0.191 274.2);

Tailwind

colors: {
  custom: {
    50: '#7459b7',
    500: '#251797',
    950: '#000000',
  },
}

SCSS

$custom: #251797;
$custom-light: #7459b7;
$custom-dark: #000000;

JSON

{
  "hex": "#251797",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 151
  },
  "hsl": {
    "h": 246.563,
    "s": 73.563,
    "l": 34.118
  },
  "oklch": {
    "l": 0.33965,
    "c": 0.19055,
    "h": 274.2
  },
  "luminance": 0.0324
}

Semantic roles & 50–950 ramp

primary

#251797

secondary

#B6C446

accent

#F038DC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #251797

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

Preview Lab → · Contrast checker → · Palette generator →