#231D79#231D79

#231D79 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.149 H 276.3°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#231D79
RGB	rgb(35, 29, 121)
HSL	hsl(244, 61%, 29%)
HSV	hsv(244, 76%, 47%)
CMYK	cmyk(71.1%, 76%, 0%, 52.5%)
CIE-LAB	lab(18.44, 33.55, -51.10)
CIE-LCH	lch(18.44, 61.13, 303.29°)
OKLab	oklab(31.13% 0.0162 -0.1477)
OKLCH	oklch(31.13% 0.149 276.3)
XYZ	xyz(4.5826, 2.6161, 18.3489)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D79 #73791D

analogous

#1D4579 #231D79 #511D79

triadic

#231D79 #79231D #1D7923

tetradic

#231D79 #791D45 #73791D #1D7951

square

#231D79 #791D45 #73791D #1D7951

split-complementary

#231D79 #79511D #45791D

monochromatic

#070619 #151148 #231D79 #3129AA #493FD1

Accessibility & contrast

On white

13.78

#231D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#231D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D79

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D79	#FFFFFF	#000000	##FFFFFF
##231D79	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002977

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231d79;
/* rgb */ color: rgb(35, 29, 121);
/* oklch */ color: oklch(31.1% 0.149 276.3);

Tailwind

colors: {
  custom: {
    50: '#6c5aa1',
    500: '#231d79',
    950: '#000000',
  },
}

SCSS

$custom: #231d79;
$custom-light: #6c5aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#231d79",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 121
  },
  "hsl": {
    "h": 243.913,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31128,
    "c": 0.14855,
    "h": 276.3
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#231D79

secondary

#A6AD45

accent

#E443DA

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08040F

muted

#7A797F

Preview Lab

Preview with #231D79

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

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