#311B94#311B94

#311B94 is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.0% C 0.181 H 279.8°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#311B94
RGB	rgb(49, 27, 148)
HSL	hsl(251, 69%, 34%)
HSV	hsv(251, 82%, 58%)
CMYK	cmyk(66.9%, 81.8%, 0%, 42%)
CIE-LAB	lab(22.21, 44.90, -61.80)
CIE-LCH	lch(22.21, 76.39, 306.00°)
OKLab	oklab(34.96% 0.0307 -0.1784)
OKLCH	oklch(34.96% 0.181 279.8)
XYZ	xyz(7.0021, 3.5744, 28.3322)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B94 #7E941B

analogous

#1B4294 #311B94 #6E1B94

triadic

#311B94 #94311B #1B9431

tetradic

#311B94 #941B42 #7E941B #1B946E

square

#311B94 #941B42 #7E941B #1B946E

split-complementary

#311B94 #946E1B #42941B

monochromatic

#0F082C #201260 #311B94 #4224C8 #664BDE

Accessibility & contrast

On white

12.24

#311B94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#311B94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B94

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B94	#FFFFFF	#000000	##FFFFFF
##311B94	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003997

Deuteranopia (green-blind)

#003092

Tritanopia (blue-blind)

#004058

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #311b94;
/* rgb */ color: rgb(49, 27, 148);
/* oklch */ color: oklch(35.0% 0.181 279.8);

Tailwind

colors: {
  custom: {
    50: '#785cb5',
    500: '#311b94',
    950: '#000000',
  },
}

SCSS

$custom: #311b94;
$custom-light: #785cb5;
$custom-dark: #000000;

JSON

{
  "hex": "#311b94",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 148
  },
  "hsl": {
    "h": 250.909,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.34957,
    "c": 0.18106,
    "h": 279.8
  },
  "luminance": 0.03575
}

Semantic roles & 50–950 ramp

primary

#311B94

secondary

#ABC04B

accent

#EC3CCC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311B94

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

Preview Lab → · Contrast checker → · Palette generator →