#331B67#331B67

#331B67 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.5% C 0.125 H 291.7°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#331B67
RGB	rgb(51, 27, 103)
HSL	hsl(259, 58%, 25%)
HSV	hsv(259, 74%, 40%)
CMYK	cmyk(50.5%, 73.8%, 0%, 59.6%)
CIE-LAB	lab(17.77, 31.28, -40.47)
CIE-LCH	lch(17.77, 51.15, 307.70°)
OKLab	oklab(30.49% 0.0462 -0.116)
OKLCH	oklch(30.49% 0.125 291.7)
XYZ	xyz(4.2047, 2.4668, 13.0839)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B67 #4F671B

analogous

#1B2967 #331B67 #591B67

triadic

#331B67 #67331B #1B6733

tetradic

#331B67 #671B29 #4F671B #1B6759

square

#331B67 #671B29 #4F671B #1B6759

split-complementary

#331B67 #67591B #29671B

monochromatic

#0C0618 #1B0E37 #331B67 #4B2897 #6334C8

Accessibility & contrast

On white

14.06

#331B67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#331B67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B67

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B67	#FFFFFF	#000000	##FFFFFF
##331B67	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D69

Deuteranopia (green-blind)

#002A65

Tritanopia (blue-blind)

#232E3F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #331b67;
/* rgb */ color: rgb(51, 27, 103);
/* oklch */ color: oklch(30.5% 0.125 291.7);

Tailwind

colors: {
  custom: {
    50: '#705993',
    500: '#331b67',
    950: '#000000',
  },
}

SCSS

$custom: #331b67;
$custom-light: #705993;
$custom-dark: #000000;

JSON

{
  "hex": "#331b67",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 103
  },
  "hsl": {
    "h": 258.947,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30485,
    "c": 0.12489,
    "h": 291.7
  },
  "luminance": 0.02467
}

Semantic roles & 50–950 ramp

primary

#331B67

secondary

#809C42

accent

#E246B1

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331B67

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

Preview Lab → · Contrast checker → · Palette generator →