#311A8A#311A8A

#311A8A is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.7% C 0.170 H 281.7°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#311A8A
RGB	rgb(49, 26, 138)
HSL	hsl(252, 68%, 32%)
HSV	hsv(252, 81%, 54%)
CMYK	cmyk(64.5%, 81.2%, 0%, 45.9%)
CIE-LAB	lab(20.93, 42.34, -57.70)
CIE-LCH	lch(20.93, 71.57, 306.27°)
OKLab	oklab(33.74% 0.0344 -0.1665)
OKLCH	oklch(33.74% 0.17 281.7)
XYZ	xyz(6.2220, 3.2263, 24.3347)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A8A #738A1A

analogous

#1A3B8A #311A8A #691A8A

triadic

#311A8A #8A311A #1A8A31

tetradic

#311A8A #8A1A3B #738A1A #1A8A69

square

#311A8A #8A1A3B #738A1A #1A8A69

split-complementary

#311A8A #8A691A #3B8A1A

monochromatic

#0C0723 #1F1057 #311A8A #4324BD #6243DC

Accessibility & contrast

On white

12.76

#311A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#311A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A8A

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A8A	#FFFFFF	#000000	##FFFFFF
##311A8A	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368D

Deuteranopia (green-blind)

#002E88

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311a8a;
/* rgb */ color: rgb(49, 26, 138);
/* oklch */ color: oklch(33.7% 0.170 281.7);

Tailwind

colors: {
  custom: {
    50: '#765bad',
    500: '#311a8a',
    950: '#000000',
  },
}

SCSS

$custom: #311a8a;
$custom-light: #765bad;
$custom-dark: #000000;

JSON

{
  "hex": "#311a8a",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 138
  },
  "hsl": {
    "h": 252.321,
    "s": 68.293,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33736,
    "c": 0.17,
    "h": 281.7
  },
  "luminance": 0.03227
}

Semantic roles & 50–950 ramp

primary

#311A8A

secondary

#A4BD43

accent

#EB3DC7

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #311A8A

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

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