#311B96#311B96

#311B96 is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.2% C 0.183 H 279.5°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#311B96
RGB	rgb(49, 27, 150)
HSL	hsl(251, 69%, 35%)
HSV	hsv(251, 82%, 59%)
CMYK	cmyk(67.3%, 82%, 0%, 41.2%)
CIE-LAB	lab(22.44, 45.51, -62.66)
CIE-LCH	lch(22.44, 77.44, 305.99°)
OKLab	oklab(35.18% 0.0301 -0.1809)
OKLCH	oklch(35.18% 0.183 279.5)
XYZ	xyz(7.1618, 3.6383, 29.1731)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B96 #80961B

analogous

#1B4296 #311B96 #6F1B96

triadic

#311B96 #96311B #1B9631

tetradic

#311B96 #961B42 #80961B #1B966F

square

#311B96 #961B42 #80961B #1B966F

split-complementary

#311B96 #966F1B #42961B

monochromatic

#0F082E #201262 #311B96 #4224CA #674DDF

Accessibility & contrast

On white

12.15

#311B96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#311B96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B96

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B96	#FFFFFF	#000000	##FFFFFF
##311B96	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A99

Deuteranopia (green-blind)

#003194

Tritanopia (blue-blind)

#004159

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #311b96;
/* rgb */ color: rgb(49, 27, 150);
/* oklch */ color: oklch(35.2% 0.183 279.5);

Tailwind

colors: {
  custom: {
    50: '#785cb6',
    500: '#311b96',
    950: '#000000',
  },
}

SCSS

$custom: #311b96;
$custom-light: #785cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#311b96",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 150
  },
  "hsl": {
    "h": 250.732,
    "s": 69.492,
    "l": 34.706
  },
  "oklch": {
    "l": 0.3518,
    "c": 0.18343,
    "h": 279.5
  },
  "luminance": 0.03639
}

Semantic roles & 50–950 ramp

primary

#311B96

secondary

#ACC14C

accent

#EC3BCD

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311B96

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

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