#231B44#231B44

#231B44 is a dark, moderate violet. Relative luminance 0.016; OKLCH L 25.6% C 0.074 H 289.1°. Best body text is #FFFFFF at 16.01:1 contrast (WCAG AA passes).

Color values

HEX	#231B44
RGB	rgb(35, 27, 68)
HSL	hsl(252, 43%, 19%)
HSV	hsv(252, 60%, 27%)
CMYK	cmyk(48.5%, 60.3%, 0%, 73.3%)
CIE-LAB	lab(12.98, 16.03, -24.67)
CIE-LCH	lch(12.98, 29.42, 303.02°)
OKLab	oklab(25.64% 0.0242 -0.0701)
OKLCH	oklch(25.64% 0.074 289.1)
XYZ	xyz(2.1282, 1.5585, 5.6564)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B44 #3C441B

analogous

#1B2744 #231B44 #371B44

triadic

#231B44 #44231B #1B4423

tetradic

#231B44 #441B27 #3C441B #1B4437

square

#231B44 #441B27 #3C441B #1B4437

split-complementary

#231B44 #44371B #27441B

monochromatic

#0B0916 #0C0A18 #231B44 #3A2C70 #503E9C

Accessibility & contrast

On white

16.01

#231B44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#231B44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B44

16.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B44	#FFFFFF	#000000	##FFFFFF
##231B44	1.00	16.01	1.31	16.01
#FFFFFF	16.01	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072245

Deuteranopia (green-blind)

#082043

Tritanopia (blue-blind)

#19242C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #231b44;
/* rgb */ color: rgb(35, 27, 68);
/* oklch */ color: oklch(25.6% 0.074 289.1);

Tailwind

colors: {
  custom: {
    50: '#615778',
    500: '#231b44',
    950: '#000000',
  },
}

SCSS

$custom: #231b44;
$custom-light: #615778;
$custom-dark: #000000;

JSON

{
  "hex": "#231b44",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 68
  },
  "hsl": {
    "h": 251.707,
    "s": 43.158,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25636,
    "c": 0.07422,
    "h": 289.1
  },
  "luminance": 0.01559
}

Semantic roles & 50–950 ramp

primary

#231B44

secondary

#6F7A41

accent

#D355BA

background

#F5F5F7

surface

#EAE9ED

border

#C6C5C8

text

#050309

muted

#79787B

Preview Lab

Preview with #231B44

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

Preview Lab → · Contrast checker → · Palette generator →