#231C8D#231C8D

#231C8D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.175 H 274.0°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#231C8D
RGB	rgb(35, 28, 141)
HSL	hsl(244, 67%, 33%)
HSV	hsv(244, 80%, 55%)
CMYK	cmyk(75.2%, 80.1%, 0%, 44.7%)
CIE-LAB	lab(20.48, 40.89, -60.35)
CIE-LCH	lch(20.48, 72.90, 304.12°)
OKLab	oklab(33.23% 0.0122 -0.1746)
OKLCH	oklch(33.23% 0.175 274)
XYZ	xyz(5.9145, 3.1103, 25.4828)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C8D #868D1C

analogous

#1C4D8D #231C8D #5B1C8D

triadic

#231C8D #8D231C #1C8D23

tetradic

#231C8D #8D1C4D #868D1C #1C8D5B

square

#231C8D #8D1C4D #868D1C #1C8D5B

split-complementary

#231C8D #8D5B1C #4D8D1C

monochromatic

#0A0827 #16125A #231C8D #3026C0 #5249DB

Accessibility & contrast

On white

12.95

#231C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#231C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C8D

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C8D	#FFFFFF	#000000	##FFFFFF
##231C8D	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002C8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231c8d;
/* rgb */ color: rgb(35, 28, 141);
/* oklch */ color: oklch(33.2% 0.175 274.0);

Tailwind

colors: {
  custom: {
    50: '#715bb0',
    500: '#231c8d',
    950: '#000000',
  },
}

SCSS

$custom: #231c8d;
$custom-light: #715bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#231c8d",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 141
  },
  "hsl": {
    "h": 243.717,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33234,
    "c": 0.17501,
    "h": 274
  },
  "luminance": 0.03111
}

Semantic roles & 50–950 ramp

primary

#231C8D

secondary

#B5BD48

accent

#EA3EDF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231C8D

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

Preview Lab → · Contrast checker → · Palette generator →