#633D8D#633D8D

#633D8D is a dark, vivid violet. Relative luminance 0.079; OKLCH L 44.3% C 0.130 H 303.5°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#633D8D
RGB	rgb(99, 61, 141)
HSL	hsl(269, 40%, 40%)
HSV	hsv(269, 57%, 55%)
CMYK	cmyk(29.8%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(33.80, 33.50, -38.39)
CIE-LCH	lch(33.80, 50.95, 311.11°)
OKLab	oklab(44.34% 0.0716 -0.1083)
OKLCH	oklch(44.34% 0.13 303.5)
XYZ	xyz(11.6210, 7.9132, 26.1093)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#633D8D #678D3D

analogous

#3D3F8D #633D8D #8B3D8D

triadic

#633D8D #8D633D #3D8D63

tetradic

#633D8D #8D3D3F #678D3D #3D8D8B

square

#633D8D #8D3D3F #678D3D #3D8D8B

split-complementary

#633D8D #8D8B3D #3F8D3D

monochromatic

#271838 #452B62 #633D8D #8153B4 #A07DC7

Accessibility & contrast

On white

8.13

#633D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#633D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #633D8D

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##633D8D	#FFFFFF	#000000	##FFFFFF
##633D8D	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4F90

Deuteranopia (green-blind)

#2C4F8B

Tritanopia (blue-blind)

#5B4C5F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #633d8d;
/* rgb */ color: rgb(99, 61, 141);
/* oklch */ color: oklch(44.3% 0.130 303.5);

Tailwind

colors: {
  custom: {
    50: '#9274af',
    500: '#633d8d',
    950: '#000000',
  },
}

SCSS

$custom: #633d8d;
$custom-light: #9274af;
$custom-dark: #000000;

JSON

{
  "hex": "#633d8d",
  "rgb": {
    "r": 99,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 268.5,
    "s": 39.604,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44342,
    "c": 0.12978,
    "h": 303.5
  },
  "luminance": 0.07913
}

Semantic roles & 50–950 ramp

primary

#633D8D

secondary

#94B175

accent

#CF5897

background

#F9F7FA

surface

#F1EDF4

border

#CBC8CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #633D8D

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

Preview Lab → · Contrast checker → · Palette generator →