#331F68#331F68

#331F68 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.2% C 0.121 H 290.2°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#331F68
RGB	rgb(51, 31, 104)
HSL	hsl(256, 54%, 26%)
HSV	hsv(256, 70%, 41%)
CMYK	cmyk(51%, 70.2%, 0%, 59.2%)
CIE-LAB	lab(18.73, 29.21, -39.56)
CIE-LCH	lch(18.73, 49.18, 306.44°)
OKLab	oklab(31.2% 0.0417 -0.1133)
OKLCH	oklch(31.2% 0.121 290.2)
XYZ	xyz(4.3532, 2.6831, 13.3825)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F68 #54681F

analogous

#1F3068 #331F68 #581F68

triadic

#331F68 #68331F #1F6833

tetradic

#331F68 #681F30 #54681F #1F6858

square

#331F68 #681F30 #54681F #1F6858

split-complementary

#331F68 #68581F #30681F

monochromatic

#0C0718 #1C1139 #331F68 #4A2D97 #623CC5

Accessibility & contrast

On white

13.67

#331F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#331F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F68

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F68	#FFFFFF	#000000	##FFFFFF
##331F68	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6A

Deuteranopia (green-blind)

#002C67

Tritanopia (blue-blind)

#223140

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331f68;
/* rgb */ color: rgb(51, 31, 104);
/* oklch */ color: oklch(31.2% 0.121 290.2);

Tailwind

colors: {
  custom: {
    50: '#705c94',
    500: '#331f68',
    950: '#000000',
  },
}

SCSS

$custom: #331f68;
$custom-light: #705c94;
$custom-dark: #000000;

JSON

{
  "hex": "#331f68",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 104
  },
  "hsl": {
    "h": 256.438,
    "s": 54.074,
    "l": 26.471
  },
  "oklch": {
    "l": 0.31201,
    "c": 0.12078,
    "h": 290.2
  },
  "luminance": 0.02683
}

Semantic roles & 50–950 ramp

primary

#331F68

secondary

#859C46

accent

#DD4AB5

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331F68

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

Preview Lab → · Contrast checker → · Palette generator →