#231D74#231D74

#231D74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.142 H 277.0°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#231D74
RGB	rgb(35, 29, 116)
HSL	hsl(244, 60%, 28%)
HSV	hsv(244, 75%, 45%)
CMYK	cmyk(69.8%, 75%, 0%, 54.5%)
CIE-LAB	lab(17.90, 31.80, -48.77)
CIE-LCH	lch(17.90, 58.22, 303.11°)
OKLab	oklab(30.59% 0.0172 -0.1408)
OKLCH	oklch(30.59% 0.142 277)
XYZ	xyz(4.2839, 2.4966, 16.7758)
Luminance	0.0250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D74 #6E741D

analogous

#1D4274 #231D74 #4E1D74

triadic

#231D74 #74231D #1D7423

tetradic

#231D74 #741D42 #6E741D #1D744E

square

#231D74 #741D42 #6E741D #1D744E

split-complementary

#231D74 #744E1D #42741D

monochromatic

#070618 #141143 #231D74 #3229A5 #473DCE

Accessibility & contrast

On white

14.01

#231D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#231D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D74

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D74	#FFFFFF	#000000	##FFFFFF
##231D74	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002872

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231d74;
/* rgb */ color: rgb(35, 29, 116);
/* oklch */ color: oklch(30.6% 0.142 277.0);

Tailwind

colors: {
  custom: {
    50: '#6a5a9d',
    500: '#231d74',
    950: '#000000',
  },
}

SCSS

$custom: #231d74;
$custom-light: #6a5a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#231d74",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 244.138,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30588,
    "c": 0.1419,
    "h": 277
  },
  "luminance": 0.02497
}

Semantic roles & 50–950 ramp

primary

#231D74

secondary

#A1A845

accent

#E345D8

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231D74

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

Preview Lab → · Contrast checker → · Palette generator →