#231D72#231D72

#231D72 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.139 H 277.3°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#231D72
RGB	rgb(35, 29, 114)
HSL	hsl(244, 59%, 28%)
HSV	hsv(244, 75%, 45%)
CMYK	cmyk(69.3%, 74.6%, 0%, 55.3%)
CIE-LAB	lab(17.69, 31.10, -47.82)
CIE-LCH	lch(17.69, 57.04, 303.04°)
OKLab	oklab(30.38% 0.0176 -0.1381)
OKLCH	oklch(30.38% 0.139 277.3)
XYZ	xyz(4.1688, 2.4506, 16.1697)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D72 #6C721D

analogous

#1D4172 #231D72 #4D1D72

triadic

#231D72 #72231D #1D7223

tetradic

#231D72 #721D41 #6C721D #1D724D

square

#231D72 #721D41 #6C721D #1D724D

split-complementary

#231D72 #724D1D #41721D

monochromatic

#070618 #141141 #231D72 #3229A3 #463CCD

Accessibility & contrast

On white

14.09

#231D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#231D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D72

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D72	#FFFFFF	#000000	##FFFFFF
##231D72	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F75

Deuteranopia (green-blind)

#002870

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231d72;
/* rgb */ color: rgb(35, 29, 114);
/* oklch */ color: oklch(30.4% 0.139 277.3);

Tailwind

colors: {
  custom: {
    50: '#6a5a9b',
    500: '#231d72',
    950: '#000000',
  },
}

SCSS

$custom: #231d72;
$custom-light: #6a5a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#231d72",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 114
  },
  "hsl": {
    "h": 244.235,
    "s": 59.441,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30376,
    "c": 0.13921,
    "h": 277.3
  },
  "luminance": 0.02451
}

Semantic roles & 50–950 ramp

primary

#231D72

secondary

#9FA645

accent

#E345D8

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231D72

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

Preview Lab → · Contrast checker → · Palette generator →