#231D83#231D83

#231D83 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.162 H 275.0°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#231D83
RGB	rgb(35, 29, 131)
HSL	hsl(244, 64%, 31%)
HSV	hsv(244, 78%, 51%)
CMYK	cmyk(73.3%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(19.53, 36.99, -55.65)
CIE-LCH	lch(19.53, 66.82, 303.62°)
OKLab	oklab(32.23% 0.0141 -0.1609)
OKLCH	oklch(32.23% 0.162 275)
XYZ	xyz(5.2279, 2.8742, 21.7476)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D83 #7D831D

analogous

#1D4A83 #231D83 #561D83

triadic

#231D83 #83231D #1D8323

tetradic

#231D83 #831D4A #7D831D #1D8356

square

#231D83 #831D4A #7D831D #1D8356

split-complementary

#231D83 #83561D #4A831D

monochromatic

#08071F #161251 #231D83 #3028B5 #4D45D6

Accessibility & contrast

On white

13.33

#231D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#231D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D83

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D83	#FFFFFF	#000000	##FFFFFF
##231D83	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003486

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #231d83;
/* rgb */ color: rgb(35, 29, 131);
/* oklch */ color: oklch(32.2% 0.162 275.0);

Tailwind

colors: {
  custom: {
    50: '#6e5ba8',
    500: '#231d83',
    950: '#000000',
  },
}

SCSS

$custom: #231d83;
$custom-light: #6e5ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#231d83",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 243.529,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32232,
    "c": 0.16152,
    "h": 275
  },
  "luminance": 0.02875
}

Semantic roles & 50–950 ramp

primary

#231D83

secondary

#AFB646

accent

#E741DD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231D83

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

Preview Lab → · Contrast checker → · Palette generator →