#231B41#231B41

#231B41 is a dark, moderate violet. Relative luminance 0.015; OKLCH L 25.4% C 0.069 H 290.3°. Best body text is #FFFFFF at 16.10:1 contrast (WCAG AA passes).

Color values

HEX	#231B41
RGB	rgb(35, 27, 65)
HSL	hsl(253, 41%, 18%)
HSV	hsv(253, 58%, 25%)
CMYK	cmyk(46.2%, 58.5%, 0%, 74.5%)
CIE-LAB	lab(12.75, 15.00, -22.93)
CIE-LCH	lch(12.75, 27.40, 303.19°)
OKLab	oklab(25.4% 0.024 -0.065)
OKLCH	oklch(25.4% 0.069 290.3)
XYZ	xyz(2.0389, 1.5228, 5.1865)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B41 #39411B

analogous

#1B2641 #231B41 #361B41

triadic

#231B41 #41231B #1B4123

tetradic

#231B41 #411B26 #39411B #1B4136

square

#231B41 #411B26 #39411B #1B4136

split-complementary

#231B41 #41361B #26411B

monochromatic

#0C0916 #0C0916 #231B41 #3A2D6C #523F97

Accessibility & contrast

On white

16.10

#231B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#231B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B41

16.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B41	#FFFFFF	#000000	##FFFFFF
##231B41	1.00	16.10	1.30	16.10
#FFFFFF	16.10	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2242

Deuteranopia (green-blind)

#0C2040

Tritanopia (blue-blind)

#1B232B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #231b41;
/* rgb */ color: rgb(35, 27, 65);
/* oklch */ color: oklch(25.4% 0.069 290.3);

Tailwind

colors: {
  custom: {
    50: '#605776',
    500: '#231b41',
    950: '#000000',
  },
}

SCSS

$custom: #231b41;
$custom-light: #605776;
$custom-dark: #000000;

JSON

{
  "hex": "#231b41",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 252.632,
    "s": 41.304,
    "l": 18.039
  },
  "oklch": {
    "l": 0.25399,
    "c": 0.06932,
    "h": 290.3
  },
  "luminance": 0.01523
}

Semantic roles & 50–950 ramp

primary

#231B41

secondary

#6B7641

accent

#D157B7

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#050308

muted

#79787B

Preview Lab

Preview with #231B41

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

Preview Lab → · Contrast checker → · Palette generator →