#231C77#231C77

#231C77 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.147 H 276.8°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#231C77
RGB	rgb(35, 28, 119)
HSL	hsl(245, 62%, 29%)
HSV	hsv(245, 76%, 47%)
CMYK	cmyk(70.6%, 76.5%, 0%, 53.3%)
CIE-LAB	lab(18.01, 33.46, -50.53)
CIE-LCH	lch(18.01, 60.60, 303.51°)
OKLab	oklab(30.76% 0.0173 -0.146)
OKLCH	oklch(30.76% 0.147 276.8)
XYZ	xyz(4.4371, 2.5193, 17.7016)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C77 #70771C

analogous

#1C4377 #231C77 #511C77

triadic

#231C77 #77231C #1C7723

tetradic

#231C77 #771C43 #70771C #1C7751

square

#231C77 #771C43 #70771C #1C7751

split-complementary

#231C77 #77511C #43771C

monochromatic

#070619 #141045 #231C77 #3228A9 #483CD1

Accessibility & contrast

On white

13.96

#231C77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#231C77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C77

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C77	#FFFFFF	#000000	##FFFFFF
##231C77	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002875

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231c77;
/* rgb */ color: rgb(35, 28, 119);
/* oklch */ color: oklch(30.8% 0.147 276.8);

Tailwind

colors: {
  custom: {
    50: '#6b5a9f',
    500: '#231c77',
    950: '#000000',
  },
}

SCSS

$custom: #231c77;
$custom-light: #6b5a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#231c77",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 119
  },
  "hsl": {
    "h": 244.615,
    "s": 61.905,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30758,
    "c": 0.14701,
    "h": 276.8
  },
  "luminance": 0.0252
}

Semantic roles & 50–950 ramp

primary

#231C77

secondary

#A3AB44

accent

#E543D9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040F

muted

#7A797E

Preview Lab

Preview with #231C77

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

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