#311B89#311B89

#311B89 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.7% C 0.168 H 281.7°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#311B89
RGB	rgb(49, 27, 137)
HSL	hsl(252, 67%, 32%)
HSV	hsv(252, 80%, 54%)
CMYK	cmyk(64.2%, 80.3%, 0%, 46.3%)
CIE-LAB	lab(20.99, 41.54, -56.97)
CIE-LCH	lch(20.99, 70.51, 306.09°)
OKLab	oklab(33.75% 0.0341 -0.1644)
OKLCH	oklch(33.75% 0.168 281.7)
XYZ	xyz(6.1725, 3.2425, 23.9627)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B89 #73891B

analogous

#1B3C89 #311B89 #681B89

triadic

#311B89 #89311B #1B8931

tetradic

#311B89 #891B3C #73891B #1B8968

square

#311B89 #891B3C #73891B #1B8968

split-complementary

#311B89 #89681B #3C891B

monochromatic

#0C0723 #1F1156 #311B89 #4325BC #6244DA

Accessibility & contrast

On white

12.74

#311B89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#311B89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B89

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B89	#FFFFFF	#000000	##FFFFFF
##311B89	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368C

Deuteranopia (green-blind)

#002E87

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311b89;
/* rgb */ color: rgb(49, 27, 137);
/* oklch */ color: oklch(33.7% 0.168 281.7);

Tailwind

colors: {
  custom: {
    50: '#765bad',
    500: '#311b89',
    950: '#000000',
  },
}

SCSS

$custom: #311b89;
$custom-light: #765bad;
$custom-dark: #000000;

JSON

{
  "hex": "#311b89",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 137
  },
  "hsl": {
    "h": 252,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33746,
    "c": 0.16787,
    "h": 281.7
  },
  "luminance": 0.03243
}

Semantic roles & 50–950 ramp

primary

#311B89

secondary

#A4BC44

accent

#EA3EC8

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #311B89

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

Preview Lab → · Contrast checker → · Palette generator →