#311B86#311B86

#311B86 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.4% C 0.164 H 282.3°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#311B86
RGB	rgb(49, 27, 134)
HSL	hsl(252, 66%, 32%)
HSV	hsv(252, 80%, 53%)
CMYK	cmyk(63.4%, 79.9%, 0%, 47.5%)
CIE-LAB	lab(20.66, 40.61, -55.63)
CIE-LCH	lch(20.66, 68.87, 306.13°)
OKLab	oklab(33.42% 0.035 -0.1604)
OKLCH	oklch(33.42% 0.164 282.3)
XYZ	xyz(5.9603, 3.1576, 22.8450)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B86 #70861B

analogous

#1B3B86 #311B86 #671B86

triadic

#311B86 #86311B #1B8631

tetradic

#311B86 #861B3B #70861B #1B8667

square

#311B86 #861B3B #70861B #1B8667

split-complementary

#311B86 #86671B #3B861B

monochromatic

#0C0620 #1E1153 #311B86 #4425B9 #6142D9

Accessibility & contrast

On white

12.87

#311B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#311B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B86

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B86	#FFFFFF	#000000	##FFFFFF
##311B86	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003589

Deuteranopia (green-blind)

#002E84

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311b86;
/* rgb */ color: rgb(49, 27, 134);
/* oklch */ color: oklch(33.4% 0.164 282.3);

Tailwind

colors: {
  custom: {
    50: '#755baa',
    500: '#311b86',
    950: '#000000',
  },
}

SCSS

$custom: #311b86;
$custom-light: #755baa;
$custom-dark: #000000;

JSON

{
  "hex": "#311b86",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 134
  },
  "hsl": {
    "h": 252.336,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.33422,
    "c": 0.16423,
    "h": 282.3
  },
  "luminance": 0.03158
}

Semantic roles & 50–950 ramp

primary

#311B86

secondary

#A1B944

accent

#E93EC6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311B86

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

Preview Lab → · Contrast checker → · Palette generator →