#331681#331681

#331681 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.5% C 0.163 H 285.3°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#331681
RGB	rgb(51, 22, 129)
HSL	hsl(256, 71%, 30%)
HSV	hsv(256, 83%, 51%)
CMYK	cmyk(60.5%, 82.9%, 0%, 49.4%)
CIE-LAB	lab(19.48, 41.77, -54.41)
CIE-LCH	lch(19.48, 68.60, 307.51°)
OKLab	oklab(32.49% 0.043 -0.1568)
OKLCH	oklch(32.49% 0.163 285.3)
XYZ	xyz(5.6134, 2.8623, 21.0213)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331681 #648116

analogous

#162E81 #331681 #691681

triadic

#331681 #813316 #168133

tetradic

#331681 #81162E #648116 #168169

square

#331681 #81162E #648116 #168169

split-complementary

#331681 #816916 #2E8116

monochromatic

#0A041A #1E0D4D #331681 #481FB5 #6235DD

Accessibility & contrast

On white

13.35

#331681 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#331681 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331681

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331681	#FFFFFF	#000000	##FFFFFF
##331681	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#06364C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #331681;
/* rgb */ color: rgb(51, 22, 129);
/* oklch */ color: oklch(32.5% 0.163 285.3);

Tailwind

colors: {
  custom: {
    50: '#7558a7',
    500: '#331681',
    950: '#000000',
  },
}

SCSS

$custom: #331681;
$custom-light: #7558a7;
$custom-dark: #000000;

JSON

{
  "hex": "#331681",
  "rgb": {
    "r": 51,
    "g": 22,
    "b": 129
  },
  "hsl": {
    "h": 256.262,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32488,
    "c": 0.16257,
    "h": 285.3
  },
  "luminance": 0.02863
}

Semantic roles & 50–950 ramp

primary

#331681

secondary

#95B63D

accent

#EE3ABD

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #331681

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

Preview Lab → · Contrast checker → · Palette generator →