#231E78#231E78

#231E78 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.146 H 276.2°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#231E78
RGB	rgb(35, 30, 120)
HSL	hsl(243, 60%, 29%)
HSV	hsv(243, 75%, 47%)
CMYK	cmyk(70.8%, 75%, 0%, 52.9%)
CIE-LAB	lab(18.55, 32.59, -50.28)
CIE-LCH	lch(18.55, 59.92, 302.96°)
OKLab	oklab(31.18% 0.0158 -0.1453)
OKLCH	oklch(31.18% 0.146 276.2)
XYZ	xyz(4.5465, 2.6415, 18.0359)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E78 #73781E

analogous

#1E4678 #231E78 #501E78

triadic

#231E78 #78231E #1E7823

tetradic

#231E78 #781E46 #73781E #1E7850

square

#231E78 #781E46 #73781E #1E7850

split-complementary

#231E78 #78501E #46781E

monochromatic

#070618 #151247 #231E78 #312AA9 #4941CF

Accessibility & contrast

On white

13.74

#231E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#231E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E78

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E78	#FFFFFF	#000000	##FFFFFF
##231E78	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231e78;
/* rgb */ color: rgb(35, 30, 120);
/* oklch */ color: oklch(31.2% 0.146 276.2);

Tailwind

colors: {
  custom: {
    50: '#6b5ba0',
    500: '#231e78',
    950: '#000000',
  },
}

SCSS

$custom: #231e78;
$custom-light: #6b5ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#231e78",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 120
  },
  "hsl": {
    "h": 243.333,
    "s": 60,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31175,
    "c": 0.14612,
    "h": 276.2
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#231E78

secondary

#A6AC46

accent

#E345DA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040F

muted

#7A797E

Preview Lab

Preview with #231E78

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

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