#331B5F#331B5F

#331B5F is a dark, moderate violet. Relative luminance 0.023; OKLCH L 29.8% C 0.114 H 294.6°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#331B5F
RGB	rgb(51, 27, 95)
HSL	hsl(261, 56%, 24%)
HSV	hsv(261, 72%, 37%)
CMYK	cmyk(46.3%, 71.6%, 0%, 62.7%)
CIE-LAB	lab(17.05, 28.82, -36.35)
CIE-LCH	lch(17.05, 46.39, 308.41°)
OKLab	oklab(29.75% 0.0477 -0.1039)
OKLCH	oklch(29.75% 0.114 294.6)
XYZ	xyz(3.8222, 2.3138, 11.0695)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B5F #475F1B

analogous

#1B255F #331B5F #551B5F

triadic

#331B5F #5F331B #1B5F33

tetradic

#331B5F #5F1B25 #475F1B #1B5F55

square

#331B5F #5F1B25 #475F1B #1B5F55

split-complementary

#331B5F #5F551B #255F1B

monochromatic

#0D0718 #190D2F #331B5F #4D298F #6636BE

Accessibility & contrast

On white

14.36

#331B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#331B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B5F

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B5F	#FFFFFF	#000000	##FFFFFF
##331B5F	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B61

Deuteranopia (green-blind)

#00295E

Tritanopia (blue-blind)

#272B3A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #331b5f;
/* rgb */ color: rgb(51, 27, 95);
/* oklch */ color: oklch(29.8% 0.114 294.6);

Tailwind

colors: {
  custom: {
    50: '#6f598d',
    500: '#331b5f',
    950: '#000000',
  },
}

SCSS

$custom: #331b5f;
$custom-light: #6f598d;
$custom-dark: #000000;

JSON

{
  "hex": "#331b5f",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 95
  },
  "hsl": {
    "h": 261.176,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.29753,
    "c": 0.11433,
    "h": 294.6
  },
  "luminance": 0.02314
}

Semantic roles & 50–950 ramp

primary

#331B5F

secondary

#779541

accent

#DF49AA

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #331B5F

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

Preview Lab → · Contrast checker → · Palette generator →