#231D63#231D63

#231D63 is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.8% C 0.118 H 279.8°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#231D63
RGB	rgb(35, 29, 99)
HSL	hsl(245, 55%, 25%)
HSV	hsv(245, 71%, 39%)
CMYK	cmyk(64.6%, 70.7%, 0%, 61.2%)
CIE-LAB	lab(16.19, 25.74, -40.49)
CIE-LCH	lch(16.19, 47.98, 302.45°)
OKLab	oklab(28.83% 0.0201 -0.1166)
OKLCH	oklch(28.83% 0.118 279.8)
XYZ	xyz(3.3839, 2.1367, 12.0361)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D63 #5D631D

analogous

#1D3A63 #231D63 #461D63

triadic

#231D63 #63231D #1D6323

tetradic

#231D63 #631D3A #5D631D #1D6346

square

#231D63 #631D3A #5D631D #1D6346

split-complementary

#231D63 #63461D #3A631D

monochromatic

#080718 #120F34 #231D63 #342B92 #4439C2

Accessibility & contrast

On white

14.71

#231D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#231D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D63

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D63	#FFFFFF	#000000	##FFFFFF
##231D63	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B65

Deuteranopia (green-blind)

#002562

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231d63;
/* rgb */ color: rgb(35, 29, 99);
/* oklch */ color: oklch(28.8% 0.118 279.8);

Tailwind

colors: {
  custom: {
    50: '#665990',
    500: '#231d63',
    950: '#000000',
  },
}

SCSS

$custom: #231d63;
$custom-light: #665990;
$custom-dark: #000000;

JSON

{
  "hex": "#231d63",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 99
  },
  "hsl": {
    "h": 245.143,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28834,
    "c": 0.11836,
    "h": 279.8
  },
  "luminance": 0.02137
}

Semantic roles & 50–950 ramp

primary

#231D63

secondary

#919844

accent

#DE4AD1

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030D

muted

#7A787D

Preview Lab

Preview with #231D63

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

Preview Lab → · Contrast checker → · Palette generator →