#231F93#231F93

#231F93 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.180 H 273.0°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#231F93
RGB	rgb(35, 31, 147)
HSL	hsl(242, 65%, 35%)
HSV	hsv(242, 79%, 58%)
CMYK	cmyk(76.2%, 78.9%, 0%, 42.4%)
CIE-LAB	lab(21.74, 41.26, -62.00)
CIE-LCH	lch(21.74, 74.47, 303.64°)
OKLab	oklab(34.32% 0.0095 -0.1794)
OKLCH	oklch(34.32% 0.18 273)
XYZ	xyz(6.4478, 3.4432, 27.9229)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F93 #8F931F

analogous

#1F5593 #231F93 #5D1F93

triadic

#231F93 #93231F #1F9323

tetradic

#231F93 #931F55 #8F931F #1F935D

square

#231F93 #931F55 #8F931F #1F935D

split-complementary

#231F93 #935D1F #55931F

monochromatic

#0B0A2E #171460 #231F93 #2F2AC6 #5752DA

Accessibility & contrast

On white

12.43

#231F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#231F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F93

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F93	#FFFFFF	#000000	##FFFFFF
##231F93	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A96

Deuteranopia (green-blind)

#002E91

Tritanopia (blue-blind)

#004258

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #231f93;
/* rgb */ color: rgb(35, 31, 147);
/* oklch */ color: oklch(34.3% 0.180 273.0);

Tailwind

colors: {
  custom: {
    50: '#725db4',
    500: '#231f93',
    950: '#000000',
  },
}

SCSS

$custom: #231f93;
$custom-light: #725db4;
$custom-dark: #000000;

JSON

{
  "hex": "#231f93",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 147
  },
  "hsl": {
    "h": 242.069,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34318,
    "c": 0.17966,
    "h": 273
  },
  "luminance": 0.03444
}

Semantic roles & 50–950 ramp

primary

#231F93

secondary

#BABE50

accent

#E840E2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231F93

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

Preview Lab → · Contrast checker → · Palette generator →