#40317B#40317B

#40317B is a dark, vivid violet. Relative luminance 0.047; OKLCH L 37.2% C 0.121 H 288.5°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#40317B
RGB	rgb(64, 49, 123)
HSL	hsl(252, 43%, 34%)
HSV	hsv(252, 60%, 48%)
CMYK	cmyk(48%, 60.2%, 0%, 51.8%)
CIE-LAB	lab(25.91, 26.78, -40.06)
CIE-LCH	lch(25.91, 48.19, 303.76°)
OKLab	oklab(37.25% 0.0382 -0.1143)
OKLCH	oklch(37.25% 0.121 288.5)
XYZ	xyz(6.7868, 4.7164, 19.2878)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40317B #6C7B31

analogous

#31477B #40317B #65317B

triadic

#40317B #7B4031 #317B40

tetradic

#40317B #7B3147 #6C7B31 #317B65

square

#40317B #7B3147 #6C7B31 #317B65

split-complementary

#40317B #7B6531 #477B31

monochromatic

#120E23 #29204F #40317B #5742A7 #7865C2

Accessibility & contrast

On white

10.81

#40317B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#40317B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40317B

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40317B	#FFFFFF	#000000	##FFFFFF
##40317B	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7D

Deuteranopia (green-blind)

#003B79

Tritanopia (blue-blind)

#2D4251

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #40317b;
/* rgb */ color: rgb(64, 49, 123);
/* oklch */ color: oklch(37.2% 0.121 288.5);

Tailwind

colors: {
  custom: {
    50: '#7a69a2',
    500: '#40317b',
    950: '#000000',
  },
}

SCSS

$custom: #40317b;
$custom-light: #7a69a2;
$custom-dark: #000000;

JSON

{
  "hex": "#40317b",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 123
  },
  "hsl": {
    "h": 252.162,
    "s": 43.023,
    "l": 33.725
  },
  "oklch": {
    "l": 0.37246,
    "c": 0.12054,
    "h": 288.5
  },
  "luminance": 0.04717
}

Semantic roles & 50–950 ramp

primary

#40317B

secondary

#9AA95F

accent

#D355B9

background

#F7F6FA

surface

#EEEBF3

border

#C9C6CD

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #40317B

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

Preview Lab → · Contrast checker → · Palette generator →