#331A74#331A74

#331A74 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.6% C 0.143 H 288.0°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#331A74
RGB	rgb(51, 26, 116)
HSL	hsl(257, 63%, 28%)
HSV	hsv(257, 78%, 45%)
CMYK	cmyk(56%, 77.6%, 0%, 54.5%)
CIE-LAB	lab(18.81, 35.85, -47.21)
CIE-LCH	lch(18.81, 59.28, 307.21°)
OKLab	oklab(31.61% 0.0441 -0.1358)
OKLCH	oklch(31.61% 0.143 288)
XYZ	xyz(4.8861, 2.7033, 16.7839)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331A74 #5B741A

analogous

#1A2E74 #331A74 #601A74

triadic

#331A74 #74331A #1A7433

tetradic

#331A74 #741A2E #5B741A #1A7460

square

#331A74 #741A2E #5B741A #1A7460

split-complementary

#331A74 #74601A #2E741A

monochromatic

#0B0619 #1D0F42 #331A74 #4925A6 #6236D2

Accessibility & contrast

On white

13.63

#331A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#331A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331A74

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331A74	#FFFFFF	#000000	##FFFFFF
##331A74	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003077

Deuteranopia (green-blind)

#002B72

Tritanopia (blue-blind)

#193345

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331a74;
/* rgb */ color: rgb(51, 26, 116);
/* oklch */ color: oklch(31.6% 0.143 288.0);

Tailwind

colors: {
  custom: {
    50: '#73599d',
    500: '#331a74',
    950: '#000000',
  },
}

SCSS

$custom: #331a74;
$custom-light: #73599d;
$custom-dark: #000000;

JSON

{
  "hex": "#331a74",
  "rgb": {
    "r": 51,
    "g": 26,
    "b": 116
  },
  "hsl": {
    "h": 256.667,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3161,
    "c": 0.14275,
    "h": 288
  },
  "luminance": 0.02704
}

Semantic roles & 50–950 ramp

primary

#331A74

secondary

#8CA941

accent

#E641B9

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331A74

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

Preview Lab → · Contrast checker → · Palette generator →