#311A9E#311A9E

#311A9E is a dark, vivid violet. Relative luminance 0.039; OKLCH L 36.0% C 0.194 H 278.3°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#311A9E
RGB	rgb(49, 26, 158)
HSL	hsl(250, 72%, 36%)
HSV	hsv(250, 84%, 62%)
CMYK	cmyk(69%, 83.5%, 0%, 38%)
CIE-LAB	lab(23.20, 48.36, -66.31)
CIE-LCH	lch(23.20, 82.07, 306.10°)
OKLab	oklab(35.98% 0.028 -0.1915)
OKLCH	oklch(35.98% 0.194 278.3)
XYZ	xyz(7.8056, 3.8597, 32.6748)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A9E #879E1A

analogous

#1A459E #311A9E #731A9E

triadic

#311A9E #9E311A #1A9E31

tetradic

#311A9E #9E1A45 #879E1A #1A9E73

square

#311A9E #9E1A45 #879E1A #1A9E73

split-complementary

#311A9E #9E731A #459E1A

monochromatic

#100935 #211169 #311A9E #4123D3 #6A50E2

Accessibility & contrast

On white

11.85

#311A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#311A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A9E

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A9E	#FFFFFF	#000000	##FFFFFF
##311A9E	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA2

Deuteranopia (green-blind)

#00329C

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311a9e;
/* rgb */ color: rgb(49, 26, 158);
/* oklch */ color: oklch(36.0% 0.194 278.3);

Tailwind

colors: {
  custom: {
    50: '#7a5cbc',
    500: '#311a9e',
    950: '#000000',
  },
}

SCSS

$custom: #311a9e;
$custom-light: #7a5cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#311a9e",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 158
  },
  "hsl": {
    "h": 250.455,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35977,
    "c": 0.19356,
    "h": 278.3
  },
  "luminance": 0.0386
}

Semantic roles & 50–950 ramp

primary

#311A9E

secondary

#B0C54F

accent

#EE39CF

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #311A9E

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

Preview Lab → · Contrast checker → · Palette generator →