#231C72#231C72

#231C72 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.140 H 277.5°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#231C72
RGB	rgb(35, 28, 114)
HSL	hsl(245, 61%, 28%)
HSV	hsv(245, 75%, 45%)
CMYK	cmyk(69.3%, 75.4%, 0%, 55.3%)
CIE-LAB	lab(17.47, 31.72, -48.18)
CIE-LCH	lch(17.47, 57.69, 303.35°)
OKLab	oklab(30.22% 0.0183 -0.1392)
OKLCH	oklch(30.22% 0.14 277.5)
XYZ	xyz(4.1447, 2.4024, 16.1616)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C72 #6B721C

analogous

#1C4072 #231C72 #4E1C72

triadic

#231C72 #72231C #1C7223

tetradic

#231C72 #721C40 #6B721C #1C724E

square

#231C72 #721C40 #6B721C #1C724E

split-complementary

#231C72 #724E1C #40721C

monochromatic

#080619 #141041 #231C72 #3228A3 #463ACF

Accessibility & contrast

On white

14.18

#231C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#231C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C72

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C72	#FFFFFF	#000000	##FFFFFF
##231C72	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E75

Deuteranopia (green-blind)

#002770

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231c72;
/* rgb */ color: rgb(35, 28, 114);
/* oklch */ color: oklch(30.2% 0.140 277.5);

Tailwind

colors: {
  custom: {
    50: '#6a599b',
    500: '#231c72',
    950: '#000000',
  },
}

SCSS

$custom: #231c72;
$custom-light: #6a599b;
$custom-dark: #000000;

JSON

{
  "hex": "#231c72",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 114
  },
  "hsl": {
    "h": 244.884,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30217,
    "c": 0.14036,
    "h": 277.5
  },
  "luminance": 0.02403
}

Semantic roles & 50–950 ramp

primary

#231C72

secondary

#9EA643

accent

#E444D7

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231C72

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

Preview Lab → · Contrast checker → · Palette generator →