#331A75#331A75

#331A75 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.7% C 0.144 H 287.7°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#331A75
RGB	rgb(51, 26, 117)
HSL	hsl(256, 64%, 28%)
HSV	hsv(256, 78%, 46%)
CMYK	cmyk(56.4%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(18.91, 36.16, -47.69)
CIE-LCH	lch(18.91, 59.85, 307.17°)
OKLab	oklab(31.71% 0.0438 -0.1372)
OKLCH	oklch(31.71% 0.144 287.7)
XYZ	xyz(4.9446, 2.7267, 17.0919)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331A75 #5C751A

analogous

#1A2E75 #331A75 #601A75

triadic

#331A75 #75331A #1A7533

tetradic

#331A75 #751A2E #5C751A #1A7560

square

#331A75 #751A2E #5C751A #1A7560

split-complementary

#331A75 #75601A #2E751A

monochromatic

#0B0619 #1D0F43 #331A75 #4925A7 #6237D3

Accessibility & contrast

On white

13.59

#331A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#331A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331A75

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331A75	#FFFFFF	#000000	##FFFFFF
##331A75	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002B73

Tritanopia (blue-blind)

#183346

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331a75;
/* rgb */ color: rgb(51, 26, 117);
/* oklch */ color: oklch(31.7% 0.144 287.7);

Tailwind

colors: {
  custom: {
    50: '#73599e',
    500: '#331a75',
    950: '#000000',
  },
}

SCSS

$custom: #331a75;
$custom-light: #73599e;
$custom-dark: #000000;

JSON

{
  "hex": "#331a75",
  "rgb": {
    "r": 51,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 256.484,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31711,
    "c": 0.144,
    "h": 287.7
  },
  "luminance": 0.02727
}

Semantic roles & 50–950 ramp

primary

#331A75

secondary

#8DAA41

accent

#E741B9

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331A75

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

Preview Lab → · Contrast checker → · Palette generator →