#311B53#311B53

#311B53 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.5% C 0.098 H 298.0°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#311B53
RGB	rgb(49, 27, 83)
HSL	hsl(264, 51%, 22%)
HSV	hsv(264, 67%, 33%)
CMYK	cmyk(41%, 67.5%, 0%, 67.5%)
CIE-LAB	lab(15.81, 24.68, -30.34)
CIE-LCH	lch(15.81, 39.11, 309.13°)
OKLab	oklab(28.48% 0.0459 -0.0863)
OKLCH	oklch(28.48% 0.098 298)
XYZ	xyz(3.2195, 2.0613, 8.4102)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B53 #3D531B

analogous

#1B2153 #311B53 #4D1B53

triadic

#311B53 #53311B #1B5331

tetradic

#311B53 #531B21 #3D531B #1B534D

square

#311B53 #531B21 #3D531B #1B534D

split-complementary

#311B53 #534D1B #21531B

monochromatic

#0E0817 #160C25 #311B53 #4C2A81 #6839AF

Accessibility & contrast

On white

14.87

#311B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#311B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B53

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B53	#FFFFFF	#000000	##FFFFFF
##311B53	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002755

Deuteranopia (green-blind)

#032752

Tritanopia (blue-blind)

#292734

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #311b53;
/* rgb */ color: rgb(49, 27, 83);
/* oklch */ color: oklch(28.5% 0.098 298.0);

Tailwind

colors: {
  custom: {
    50: '#6c5884',
    500: '#311b53',
    950: '#000000',
  },
}

SCSS

$custom: #311b53;
$custom-light: #6c5884;
$custom-dark: #000000;

JSON

{
  "hex": "#311b53",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 83
  },
  "hsl": {
    "h": 263.571,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.28478,
    "c": 0.09773,
    "h": 298
  },
  "luminance": 0.02061
}

Semantic roles & 50–950 ramp

primary

#311B53

secondary

#6D8941

accent

#DA4DA3

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #311B53

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

Preview Lab → · Contrast checker → · Palette generator →