#311B98#311B98

#311B98 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.4% C 0.186 H 279.1°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#311B98
RGB	rgb(49, 27, 152)
HSL	hsl(251, 70%, 35%)
HSV	hsv(251, 82%, 60%)
CMYK	cmyk(67.8%, 82.2%, 0%, 40.4%)
CIE-LAB	lab(22.66, 46.11, -63.52)
CIE-LCH	lch(22.66, 78.49, 305.98°)
OKLab	oklab(35.4% 0.0295 -0.1834)
OKLCH	oklch(35.4% 0.186 279.1)
XYZ	xyz(7.3242, 3.7032, 30.0285)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B98 #82981B

analogous

#1B4498 #311B98 #6F1B98

triadic

#311B98 #98311B #1B9831

tetradic

#311B98 #981B44 #82981B #1B986F

square

#311B98 #981B44 #82981B #1B986F

split-complementary

#311B98 #986F1B #44981B

monochromatic

#0F0930 #201264 #311B98 #4224CC #684EE0

Accessibility & contrast

On white

12.06

#311B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#311B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B98

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B98	#FFFFFF	#000000	##FFFFFF
##311B98	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9B

Deuteranopia (green-blind)

#003196

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #311b98;
/* rgb */ color: rgb(49, 27, 152);
/* oklch */ color: oklch(35.4% 0.186 279.1);

Tailwind

colors: {
  custom: {
    50: '#795cb8',
    500: '#311b98',
    950: '#000000',
  },
}

SCSS

$custom: #311b98;
$custom-light: #795cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#311b98",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 152
  },
  "hsl": {
    "h": 250.56,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35404,
    "c": 0.18579,
    "h": 279.1
  },
  "luminance": 0.03704
}

Semantic roles & 50–950 ramp

primary

#311B98

secondary

#ADC24D

accent

#ED3BCD

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311B98

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

Preview Lab → · Contrast checker → · Palette generator →