#231C8E#231C8E

#231C8E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.3% C 0.176 H 273.9°. Best body text is #FFFFFF at 12.90:1 contrast (WCAG AA passes).

Color values

HEX	#231C8E
RGB	rgb(35, 28, 142)
HSL	hsl(244, 67%, 33%)
HSV	hsv(244, 80%, 56%)
CMYK	cmyk(75.4%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(20.60, 41.22, -60.78)
CIE-LCH	lch(20.60, 73.44, 304.14°)
OKLab	oklab(33.35% 0.0119 -0.1758)
OKLCH	oklch(33.35% 0.176 273.9)
XYZ	xyz(5.9893, 3.1402, 25.8764)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C8E #878E1C

analogous

#1C4E8E #231C8E #5C1C8E

triadic

#231C8E #8E231C #1C8E23

tetradic

#231C8E #8E1C4E #878E1C #1C8E5C

square

#231C8E #8E1C4E #878E1C #1C8E5C

split-complementary

#231C8E #8E5C1C #4E8E1C

monochromatic

#0A0828 #16125B #231C8E #3026C1 #5249DB

Accessibility & contrast

On white

12.90

#231C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#231C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C8E

12.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C8E	#FFFFFF	#000000	##FFFFFF
##231C8E	1.00	12.90	1.63	12.90
#FFFFFF	12.90	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002C8C

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #231c8e;
/* rgb */ color: rgb(35, 28, 142);
/* oklch */ color: oklch(33.3% 0.176 273.9);

Tailwind

colors: {
  custom: {
    50: '#715bb0',
    500: '#231c8e',
    950: '#000000',
  },
}

SCSS

$custom: #231c8e;
$custom-light: #715bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#231c8e",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 243.684,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33349,
    "c": 0.17624,
    "h": 273.9
  },
  "luminance": 0.03141
}

Semantic roles & 50–950 ramp

primary

#231C8E

secondary

#B6BD49

accent

#EA3EDF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231C8E

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

Preview Lab → · Contrast checker → · Palette generator →