#311F7B#311F7B

#311F7B is a dark, vivid violet. Relative luminance 0.031; OKLCH L 32.8% C 0.146 H 283.8°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#311F7B
RGB	rgb(49, 31, 123)
HSL	hsl(252, 60%, 30%)
HSV	hsv(252, 75%, 48%)
CMYK	cmyk(60.2%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(20.29, 34.95, -49.28)
CIE-LCH	lch(20.29, 60.41, 305.35°)
OKLab	oklab(32.82% 0.035 -0.1419)
OKLCH	oklch(32.82% 0.146 283.8)
XYZ	xyz(5.3307, 3.0627, 19.0453)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F7B #697B1F

analogous

#1F3B7B #311F7B #5F1F7B

triadic

#311F7B #7B311F #1F7B31

tetradic

#311F7B #7B1F3B #697B1F #1F7B5F

square

#311F7B #7B1F3B #697B1F #1F7B5F

split-complementary

#311F7B #7B5F1F #3B7B1F

monochromatic

#0A0619 #1E134A #311F7B #442BAC #6044D0

Accessibility & contrast

On white

13.02

#311F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#311F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F7B

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F7B	#FFFFFF	#000000	##FFFFFF
##311F7B	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#07384B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311f7b;
/* rgb */ color: rgb(49, 31, 123);
/* oklch */ color: oklch(32.8% 0.146 283.8);

Tailwind

colors: {
  custom: {
    50: '#735da2',
    500: '#311f7b',
    950: '#000000',
  },
}

SCSS

$custom: #311f7b;
$custom-light: #735da2;
$custom-dark: #000000;

JSON

{
  "hex": "#311f7b",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 251.739,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32817,
    "c": 0.14617,
    "h": 283.8
  },
  "luminance": 0.03063
}

Semantic roles & 50–950 ramp

primary

#311F7B

secondary

#9AAE48

accent

#E345C4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311F7B

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

Preview Lab → · Contrast checker → · Palette generator →