#231D89#231D89

#231D89 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.169 H 274.3°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#231D89
RGB	rgb(35, 29, 137)
HSL	hsl(243, 65%, 33%)
HSV	hsv(243, 79%, 54%)
CMYK	cmyk(74.5%, 78.8%, 0%, 46.3%)
CIE-LAB	lab(20.21, 39.02, -58.30)
CIE-LCH	lch(20.21, 70.15, 303.79°)
OKLab	oklab(32.91% 0.0127 -0.1686)
OKLCH	oklch(32.91% 0.169 274.3)
XYZ	xyz(5.6464, 3.0416, 23.9516)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D89 #83891D

analogous

#1D4D89 #231D89 #591D89

triadic

#231D89 #89231D #1D8923

tetradic

#231D89 #891D4D #83891D #1D8959

square

#231D89 #891D4D #83891D #1D8959

split-complementary

#231D89 #89591D #4D891D

monochromatic

#090824 #161256 #231D89 #3028BC #5048D8

Accessibility & contrast

On white

13.06

#231D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#231D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D89

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D89	#FFFFFF	#000000	##FFFFFF
##231D89	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368C

Deuteranopia (green-blind)

#002C87

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231d89;
/* rgb */ color: rgb(35, 29, 137);
/* oklch */ color: oklch(32.9% 0.169 274.3);

Tailwind

colors: {
  custom: {
    50: '#705bad',
    500: '#231d89',
    950: '#000000',
  },
}

SCSS

$custom: #231d89;
$custom-light: #705bad;
$custom-dark: #000000;

JSON

{
  "hex": "#231d89",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 137
  },
  "hsl": {
    "h": 243.333,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32908,
    "c": 0.16912,
    "h": 274.3
  },
  "luminance": 0.03042
}

Semantic roles & 50–950 ramp

primary

#231D89

secondary

#B4BA47

accent

#E840DF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #231D89

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

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