#331B90#331B90

#331B90 is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.7% C 0.176 H 281.5°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#331B90
RGB	rgb(51, 27, 144)
HSL	hsl(252, 68%, 34%)
HSV	hsv(252, 81%, 56%)
CMYK	cmyk(64.6%, 81.3%, 0%, 43.5%)
CIE-LAB	lab(21.95, 43.90, -59.75)
CIE-LCH	lch(21.95, 74.14, 306.30°)
OKLab	oklab(34.69% 0.0351 -0.1724)
OKLCH	oklch(34.69% 0.176 281.5)
XYZ	xyz(6.7896, 3.5008, 26.6981)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B90 #78901B

analogous

#1B3D90 #331B90 #6D1B90

triadic

#331B90 #90331B #1B9033

tetradic

#331B90 #901B3D #78901B #1B906D

square

#331B90 #901B3D #78901B #1B906D

split-complementary

#331B90 #906D1B #3D901B

monochromatic

#0E0829 #21115C #331B90 #4525C4 #6749DD

Accessibility & contrast

On white

12.35

#331B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#331B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B90

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B90	#FFFFFF	#000000	##FFFFFF
##331B90	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#00308E

Tritanopia (blue-blind)

#003E56

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #331b90;
/* rgb */ color: rgb(51, 27, 144);
/* oklch */ color: oklch(34.7% 0.176 281.5);

Tailwind

colors: {
  custom: {
    50: '#785cb2',
    500: '#331b90',
    950: '#000000',
  },
}

SCSS

$custom: #331b90;
$custom-light: #785cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#331b90",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 144
  },
  "hsl": {
    "h": 252.308,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34687,
    "c": 0.17595,
    "h": 281.5
  },
  "luminance": 0.03501
}

Semantic roles & 50–950 ramp

primary

#331B90

secondary

#A6BF48

accent

#EB3DC7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #331B90

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

Preview Lab → · Contrast checker → · Palette generator →