#311A8D#311A8D

#311A8D is a dark, vivid violet. Relative luminance 0.033; OKLCH L 34.1% C 0.174 H 281.1°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#311A8D
RGB	rgb(49, 26, 141)
HSL	hsl(252, 69%, 33%)
HSV	hsv(252, 82%, 55%)
CMYK	cmyk(65.2%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(21.26, 43.25, -59.03)
CIE-LCH	lch(21.26, 73.18, 306.23°)
OKLab	oklab(34.07% 0.0335 -0.1703)
OKLCH	oklch(34.07% 0.174 281.1)
XYZ	xyz(6.4422, 3.3144, 25.4944)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A8D #768D1A

analogous

#1A3C8D #311A8D #6A1A8D

triadic

#311A8D #8D311A #1A8D31

tetradic

#311A8D #8D1A3C #768D1A #1A8D6A

square

#311A8D #8D1A3C #768D1A #1A8D6A

split-complementary

#311A8D #8D6A1A #3C8D1A

monochromatic

#0D0726 #1F1059 #311A8D #4324C1 #6345DD

Accessibility & contrast

On white

12.63

#311A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#311A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A8D

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A8D	#FFFFFF	#000000	##FFFFFF
##311A8D	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002F8B

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #311a8d;
/* rgb */ color: rgb(49, 26, 141);
/* oklch */ color: oklch(34.1% 0.174 281.1);

Tailwind

colors: {
  custom: {
    50: '#775bb0',
    500: '#311a8d',
    950: '#000000',
  },
}

SCSS

$custom: #311a8d;
$custom-light: #775bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#311a8d",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 252,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34066,
    "c": 0.1736,
    "h": 281.1
  },
  "luminance": 0.03315
}

Semantic roles & 50–950 ramp

primary

#311A8D

secondary

#A6BE45

accent

#EC3CC9

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311A8D

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

Preview Lab → · Contrast checker → · Palette generator →