#231D87#231D87

#231D87 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.167 H 274.5°. Best body text is #FFFFFF at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#231D87
RGB	rgb(35, 29, 135)
HSL	hsl(243, 65%, 32%)
HSV	hsv(243, 79%, 53%)
CMYK	cmyk(74.1%, 78.5%, 0%, 47.1%)
CIE-LAB	lab(19.98, 38.35, -57.42)
CIE-LCH	lch(19.98, 69.05, 303.73°)
OKLab	oklab(32.68% 0.0131 -0.1661)
OKLCH	oklch(32.68% 0.167 274.5)
XYZ	xyz(5.5042, 2.9848, 23.2030)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D87 #81871D

analogous

#1D4C87 #231D87 #581D87

triadic

#231D87 #87231D #1D8723

tetradic

#231D87 #871D4C #81871D #1D8758

square

#231D87 #871D4C #81871D #1D8758

split-complementary

#231D87 #87581D #4C871D

monochromatic

#090722 #161255 #231D87 #3028B9 #4F47D7

Accessibility & contrast

On white

13.15

#231D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#231D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D87

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D87	#FFFFFF	#000000	##FFFFFF
##231D87	1.00	13.15	1.60	13.15
#FFFFFF	13.15	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002B85

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #231d87;
/* rgb */ color: rgb(35, 29, 135);
/* oklch */ color: oklch(32.7% 0.167 274.5);

Tailwind

colors: {
  custom: {
    50: '#6f5bab',
    500: '#231d87',
    950: '#000000',
  },
}

SCSS

$custom: #231d87;
$custom-light: #6f5bab;
$custom-dark: #000000;

JSON

{
  "hex": "#231d87",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 135
  },
  "hsl": {
    "h": 243.396,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32682,
    "c": 0.1666,
    "h": 274.5
  },
  "luminance": 0.02985
}

Semantic roles & 50–950 ramp

primary

#231D87

secondary

#B3B946

accent

#E840DE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #231D87

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

Preview Lab → · Contrast checker → · Palette generator →