#331B61#331B61

#331B61 is a dark, moderate violet. Relative luminance 0.024; OKLCH L 29.9% C 0.117 H 293.9°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#331B61
RGB	rgb(51, 27, 97)
HSL	hsl(261, 56%, 24%)
HSV	hsv(261, 72%, 38%)
CMYK	cmyk(47.4%, 72.2%, 0%, 62%)
CIE-LAB	lab(17.23, 29.44, -37.40)
CIE-LCH	lch(17.23, 47.59, 308.21°)
OKLab	oklab(29.93% 0.0474 -0.107)
OKLCH	oklch(29.93% 0.117 293.9)
XYZ	xyz(3.9143, 2.3506, 11.5544)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B61 #49611B

analogous

#1B2661 #331B61 #561B61

triadic

#331B61 #61331B #1B6133

tetradic

#331B61 #611B26 #49611B #1B6156

square

#331B61 #611B26 #49611B #1B6156

split-complementary

#331B61 #61561B #26611B

monochromatic

#0D0718 #1A0E31 #331B61 #4C2891 #6536C1

Accessibility & contrast

On white

14.28

#331B61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#331B61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B61

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B61	#FFFFFF	#000000	##FFFFFF
##331B61	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B63

Deuteranopia (green-blind)

#002960

Tritanopia (blue-blind)

#262C3B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #331b61;
/* rgb */ color: rgb(51, 27, 97);
/* oklch */ color: oklch(29.9% 0.117 293.9);

Tailwind

colors: {
  custom: {
    50: '#6f598f',
    500: '#331b61',
    950: '#000000',
  },
}

SCSS

$custom: #331b61;
$custom-light: #6f598f;
$custom-dark: #000000;

JSON

{
  "hex": "#331b61",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 97
  },
  "hsl": {
    "h": 260.571,
    "s": 56.452,
    "l": 24.314
  },
  "oklch": {
    "l": 0.29933,
    "c": 0.11698,
    "h": 293.9
  },
  "luminance": 0.02351
}

Semantic roles & 50–950 ramp

primary

#331B61

secondary

#799741

accent

#E048AC

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #331B61

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

Preview Lab → · Contrast checker → · Palette generator →