#311B93#311B93

#311B93 is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.8% C 0.180 H 279.9°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#311B93
RGB	rgb(49, 27, 147)
HSL	hsl(251, 69%, 34%)
HSV	hsv(251, 82%, 58%)
CMYK	cmyk(66.7%, 81.6%, 0%, 42.4%)
CIE-LAB	lab(22.10, 44.60, -61.37)
CIE-LCH	lch(22.10, 75.86, 306.00°)
OKLab	oklab(34.85% 0.0311 -0.1772)
OKLCH	oklch(34.85% 0.18 279.9)
XYZ	xyz(6.9233, 3.5429, 27.9171)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B93 #7D931B

analogous

#1B4193 #311B93 #6D1B93

triadic

#311B93 #93311B #1B9331

tetradic

#311B93 #931B41 #7D931B #1B936D

square

#311B93 #931B41 #7D931B #1B936D

split-complementary

#311B93 #936D1B #41931B

monochromatic

#0F082C #20125F #311B93 #4224C7 #664BDE

Accessibility & contrast

On white

12.29

#311B93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#311B93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B93

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B93	#FFFFFF	#000000	##FFFFFF
##311B93	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003996

Deuteranopia (green-blind)

#003091

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #311b93;
/* rgb */ color: rgb(49, 27, 147);
/* oklch */ color: oklch(34.8% 0.180 279.9);

Tailwind

colors: {
  custom: {
    50: '#785cb4',
    500: '#311b93',
    950: '#000000',
  },
}

SCSS

$custom: #311b93;
$custom-light: #785cb4;
$custom-dark: #000000;

JSON

{
  "hex": "#311b93",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 147
  },
  "hsl": {
    "h": 251,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34845,
    "c": 0.17988,
    "h": 279.9
  },
  "luminance": 0.03543
}

Semantic roles & 50–950 ramp

primary

#311B93

secondary

#AAC04A

accent

#EC3CCC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311B93

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

Preview Lab → · Contrast checker → · Palette generator →