#231C66#231C66

#231C66 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.0% C 0.124 H 279.6°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#231C66
RGB	rgb(35, 28, 102)
HSL	hsl(246, 57%, 25%)
HSV	hsv(246, 73%, 40%)
CMYK	cmyk(65.7%, 72.5%, 0%, 60%)
CIE-LAB	lab(16.24, 27.47, -42.38)
CIE-LCH	lch(16.24, 50.51, 302.95°)
OKLab	oklab(28.96% 0.0206 -0.1222)
OKLCH	oklch(28.96% 0.124 279.6)
XYZ	xyz(3.5059, 2.1469, 12.7974)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C66 #5F661C

analogous

#1C3A66 #231C66 #481C66

triadic

#231C66 #66231C #1C6623

tetradic

#231C66 #661C3A #5F661C #1C6648

square

#231C66 #661C3A #5F661C #1C6648

split-complementary

#231C66 #66481C #3A661C

monochromatic

#080718 #130F36 #231C66 #332996 #4436C6

Accessibility & contrast

On white

14.69

#231C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#231C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C66

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C66	#FFFFFF	#000000	##FFFFFF
##231C66	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B68

Deuteranopia (green-blind)

#002565

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231c66;
/* rgb */ color: rgb(35, 28, 102);
/* oklch */ color: oklch(29.0% 0.124 279.6);

Tailwind

colors: {
  custom: {
    50: '#675992',
    500: '#231c66',
    950: '#000000',
  },
}

SCSS

$custom: #231c66;
$custom-light: #675992;
$custom-dark: #000000;

JSON

{
  "hex": "#231c66",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 245.676,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28961,
    "c": 0.1239,
    "h": 279.6
  },
  "luminance": 0.02147
}

Semantic roles & 50–950 ramp

primary

#231C66

secondary

#939B43

accent

#E048D2

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07030D

muted

#7A787E

Preview Lab

Preview with #231C66

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

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