#231D75#231D75

#231D75 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.143 H 276.8°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#231D75
RGB	rgb(35, 29, 117)
HSL	hsl(244, 60%, 29%)
HSV	hsv(244, 75%, 46%)
CMYK	cmyk(70.1%, 75.2%, 0%, 54.1%)
CIE-LAB	lab(18.01, 32.15, -49.23)
CIE-LCH	lch(18.01, 58.80, 303.15°)
OKLab	oklab(30.7% 0.0171 -0.1422)
OKLCH	oklch(30.7% 0.143 276.8)
XYZ	xyz(4.3423, 2.5200, 17.0837)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D75 #6F751D

analogous

#1D4375 #231D75 #4F1D75

triadic

#231D75 #75231D #1D7523

tetradic

#231D75 #751D43 #6F751D #1D754F

square

#231D75 #751D43 #6F751D #1D754F

split-complementary

#231D75 #754F1D #43751D

monochromatic

#070619 #141144 #231D75 #3229A6 #473DCF

Accessibility & contrast

On white

13.96

#231D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#231D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D75

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D75	#FFFFFF	#000000	##FFFFFF
##231D75	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)

#003078

Deuteranopia (green-blind)

#002873

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231d75;
/* rgb */ color: rgb(35, 29, 117);
/* oklch */ color: oklch(30.7% 0.143 276.8);

Tailwind

colors: {
  custom: {
    50: '#6b5a9e',
    500: '#231d75',
    950: '#000000',
  },
}

SCSS

$custom: #231d75;
$custom-light: #6b5a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#231d75",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 117
  },
  "hsl": {
    "h": 244.091,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30696,
    "c": 0.14325,
    "h": 276.8
  },
  "luminance": 0.0252
}

Semantic roles & 50–950 ramp

primary

#231D75

secondary

#A2A945

accent

#E344D9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231D75

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

Preview Lab → · Contrast checker → · Palette generator →