#231C91#231C91

#231C91 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.180 H 273.6°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#231C91
RGB	rgb(35, 28, 145)
HSL	hsl(244, 68%, 34%)
HSV	hsv(244, 81%, 57%)
CMYK	cmyk(75.9%, 80.7%, 0%, 43.1%)
CIE-LAB	lab(20.95, 42.20, -62.07)
CIE-LCH	lch(20.95, 75.06, 304.21°)
OKLab	oklab(33.7% 0.0112 -0.1796)
OKLCH	oklch(33.7% 0.18 273.6)
XYZ	xyz(6.2175, 3.2315, 27.0786)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C91 #8A911C

analogous

#1C5091 #231C91 #5E1C91

triadic

#231C91 #91231C #1C9123

tetradic

#231C91 #911C50 #8A911C #1C915E

square

#231C91 #911C50 #8A911C #1C915E

split-complementary

#231C91 #915E1C #50911C

monochromatic

#0A082A #17125E #231C91 #2F26C4 #544BDC

Accessibility & contrast

On white

12.76

#231C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#231C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C91

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C91	#FFFFFF	#000000	##FFFFFF
##231C91	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003894

Deuteranopia (green-blind)

#002D8F

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #231c91;
/* rgb */ color: rgb(35, 28, 145);
/* oklch */ color: oklch(33.7% 0.180 273.6);

Tailwind

colors: {
  custom: {
    50: '#725bb3',
    500: '#231c91',
    950: '#000000',
  },
}

SCSS

$custom: #231c91;
$custom-light: #725bb3;
$custom-dark: #000000;

JSON

{
  "hex": "#231c91",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 145
  },
  "hsl": {
    "h": 243.59,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33697,
    "c": 0.17992,
    "h": 273.6
  },
  "luminance": 0.03232
}

Semantic roles & 50–950 ramp

primary

#231C91

secondary

#B7BE4A

accent

#EB3DE0

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231C91

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

Preview Lab → · Contrast checker → · Palette generator →