#311D7E#311D7E

#311D7E is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.8% C 0.152 H 283.6°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#311D7E
RGB	rgb(49, 29, 126)
HSL	hsl(252, 63%, 30%)
HSV	hsv(252, 77%, 49%)
CMYK	cmyk(61.1%, 77%, 0%, 50.6%)
CIE-LAB	lab(20.19, 37.04, -51.35)
CIE-LCH	lch(20.19, 63.31, 305.81°)
OKLab	oklab(32.84% 0.0358 -0.148)
OKLCH	oklch(32.84% 0.152 283.6)
XYZ	xyz(5.4707, 3.0377, 20.0327)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D7E #6A7E1D

analogous

#1D397E #311D7E #611D7E

triadic

#311D7E #7E311D #1D7E31

tetradic

#311D7E #7E1D39 #6A7E1D #1D7E61

square

#311D7E #7E1D39 #6A7E1D #1D7E61

split-complementary

#311D7E #7E611D #397E1D

monochromatic

#0A061B #1E124C #311D7E #4428B0 #6042D3

Accessibility & contrast

On white

13.06

#311D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#311D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D7E

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D7E	#FFFFFF	#000000	##FFFFFF
##311D7E	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002D7C

Tritanopia (blue-blind)

#01384C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311d7e;
/* rgb */ color: rgb(49, 29, 126);
/* oklch */ color: oklch(32.8% 0.152 283.6);

Tailwind

colors: {
  custom: {
    50: '#735ca4',
    500: '#311d7e',
    950: '#000000',
  },
}

SCSS

$custom: #311d7e;
$custom-light: #735ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#311d7e",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 126
  },
  "hsl": {
    "h": 252.371,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32839,
    "c": 0.15224,
    "h": 283.6
  },
  "luminance": 0.03038
}

Semantic roles & 50–950 ramp

primary

#311D7E

secondary

#9BB145

accent

#E642C4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311D7E

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

Preview Lab → · Contrast checker → · Palette generator →