#231D66#231D66

#231D66 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.1% C 0.123 H 279.2°. Best body text is #FFFFFF at 14.59:1 contrast (WCAG AA passes).

Color values

HEX	#231D66
RGB	rgb(35, 29, 102)
HSL	hsl(245, 56%, 26%)
HSV	hsv(245, 72%, 40%)
CMYK	cmyk(65.7%, 71.6%, 0%, 60%)
CIE-LAB	lab(16.48, 26.82, -41.99)
CIE-LCH	lch(16.48, 49.83, 302.57°)
OKLab	oklab(29.13% 0.0197 -0.121)
OKLCH	oklch(29.13% 0.123 279.2)
XYZ	xyz(3.5300, 2.1951, 12.8055)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D66 #60661D

analogous

#1D3B66 #231D66 #471D66

triadic

#231D66 #66231D #1D6623

tetradic

#231D66 #661D3B #60661D #1D6647

square

#231D66 #661D3B #60661D #1D6647

split-complementary

#231D66 #66471D #3B661D

monochromatic

#080718 #130F36 #231D66 #332B96 #4438C5

Accessibility & contrast

On white

14.59

#231D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#231D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D66

14.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D66	#FFFFFF	#000000	##FFFFFF
##231D66	1.00	14.59	1.44	14.59
#FFFFFF	14.59	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C68

Deuteranopia (green-blind)

#002665

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231d66;
/* rgb */ color: rgb(35, 29, 102);
/* oklch */ color: oklch(29.1% 0.123 279.2);

Tailwind

colors: {
  custom: {
    50: '#675992',
    500: '#231d66',
    950: '#000000',
  },
}

SCSS

$custom: #231d66;
$custom-light: #675992;
$custom-dark: #000000;

JSON

{
  "hex": "#231d66",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 102
  },
  "hsl": {
    "h": 244.932,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.29134,
    "c": 0.12262,
    "h": 279.2
  },
  "luminance": 0.02195
}

Semantic roles & 50–950 ramp

primary

#231D66

secondary

#949B44

accent

#DF49D3

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07030D

muted

#7A787E

Preview Lab

Preview with #231D66

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

Preview Lab → · Contrast checker → · Palette generator →