#231888#231888

#231888 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.172 H 275.0°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#231888
RGB	rgb(35, 24, 136)
HSL	hsl(246, 70%, 31%)
HSV	hsv(246, 82%, 53%)
CMYK	cmyk(74.3%, 82.4%, 0%, 46.7%)
CIE-LAB	lab(19.17, 41.35, -59.39)
CIE-LCH	lch(19.17, 72.37, 304.84°)
OKLab	oklab(32.15% 0.0151 -0.1717)
OKLCH	oklch(32.15% 0.172 275)
XYZ	xyz(5.4622, 2.7876, 23.5380)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231888 #7D8818

analogous

#184588 #231888 #5B1888

triadic

#231888 #882318 #188823

tetradic

#231888 #881845 #7D8818 #18885B

square

#231888 #881845 #7D8818 #18885B

split-complementary

#231888 #885B18 #458818

monochromatic

#080620 #160F54 #231888 #3021BC #4D3EDD

Accessibility & contrast

On white

13.48

#231888 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#231888 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231888

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231888	#FFFFFF	#000000	##FFFFFF
##231888	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338B

Deuteranopia (green-blind)

#002986

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #231888;
/* rgb */ color: rgb(35, 24, 136);
/* oklch */ color: oklch(32.1% 0.172 275.0);

Tailwind

colors: {
  custom: {
    50: '#7058ac',
    500: '#231888',
    950: '#000000',
  },
}

SCSS

$custom: #231888;
$custom-light: #7058ac;
$custom-dark: #000000;

JSON

{
  "hex": "#231888",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 136
  },
  "hsl": {
    "h": 245.893,
    "s": 70,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32149,
    "c": 0.17239,
    "h": 275
  },
  "luminance": 0.02788
}

Semantic roles & 50–950 ramp

primary

#231888

secondary

#AFBC40

accent

#ED3BDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #231888

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

Preview Lab → · Contrast checker → · Palette generator →