#231E90#231E90

#231E90 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.8% C 0.177 H 273.4°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#231E90
RGB	rgb(35, 30, 144)
HSL	hsl(243, 66%, 34%)
HSV	hsv(243, 79%, 56%)
CMYK	cmyk(75.7%, 79.2%, 0%, 43.5%)
CIE-LAB	lab(21.20, 40.80, -61.03)
CIE-LCH	lch(21.20, 73.41, 303.77°)
OKLab	oklab(33.84% 0.0106 -0.1766)
OKLCH	oklch(33.84% 0.177 273.4)
XYZ	xyz(6.1898, 3.2989, 26.6907)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E90 #8B901E

analogous

#1E5290 #231E90 #5C1E90

triadic

#231E90 #90231E #1E9023

tetradic

#231E90 #901E52 #8B901E #1E905C

square

#231E90 #901E52 #8B901E #1E905C

split-complementary

#231E90 #905C1E #52901E

monochromatic

#0A092B #17135D #231E90 #2F29C3 #544EDA

Accessibility & contrast

On white

12.65

#231E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#231E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E90

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E90	#FFFFFF	#000000	##FFFFFF
##231E90	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#002D8E

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #231e90;
/* rgb */ color: rgb(35, 30, 144);
/* oklch */ color: oklch(33.8% 0.177 273.4);

Tailwind

colors: {
  custom: {
    50: '#715cb2',
    500: '#231e90',
    950: '#000000',
  },
}

SCSS

$custom: #231e90;
$custom-light: #715cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#231e90",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 144
  },
  "hsl": {
    "h": 242.632,
    "s": 65.517,
    "l": 34.118
  },
  "oklch": {
    "l": 0.33842,
    "c": 0.17689,
    "h": 273.4
  },
  "luminance": 0.03299
}

Semantic roles & 50–950 ramp

primary

#231E90

secondary

#B8BD4D

accent

#E83FE1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231E90

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

Preview Lab → · Contrast checker → · Palette generator →