#63178B#63178B

#63178B is a dark, vivid violet. Relative luminance 0.051; OKLCH L 39.5% C 0.178 H 310.0°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#63178B
RGB	rgb(99, 23, 139)
HSL	hsl(279, 72%, 32%)
HSV	hsv(279, 83%, 55%)
CMYK	cmyk(28.8%, 83.5%, 0%, 45.5%)
CIE-LAB	lab(27.10, 51.13, -47.96)
CIE-LCH	lch(27.10, 70.10, 316.84°)
OKLab	oklab(39.49% 0.1143 -0.1362)
OKLCH	oklch(39.49% 0.178 310)
XYZ	xyz(10.1113, 5.1297, 24.8786)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63178B #3F8B17

analogous

#29178B #63178B #8B1779

triadic

#63178B #8B6317 #178B63

tetradic

#63178B #8B2917 #3F8B17 #17798B

square

#63178B #8B2917 #3F8B17 #17798B

split-complementary

#63178B #798B17 #178B29

monochromatic

#180622 #3E0E56 #63178B #8820C0 #A73DDF

Accessibility & contrast

On white

10.37

#63178B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#63178B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63178B

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63178B	#FFFFFF	#000000	##FFFFFF
##63178B	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#004189

Tritanopia (blue-blind)

#5D3652

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #63178b;
/* rgb */ color: rgb(99, 23, 139);
/* oklch */ color: oklch(39.5% 0.178 310.0);

Tailwind

colors: {
  custom: {
    50: '#945fae',
    500: '#63178b',
    950: '#000000',
  },
}

SCSS

$custom: #63178b;
$custom-light: #945fae;
$custom-dark: #000000;

JSON

{
  "hex": "#63178b",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 139
  },
  "hsl": {
    "h": 279.31,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39486,
    "c": 0.17778,
    "h": 310
  },
  "luminance": 0.0513
}

Semantic roles & 50–950 ramp

primary

#63178B

secondary

#6BBF3F

accent

#EE3978

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E0510

muted

#7E797F

Preview Lab

Preview with #63178B

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

Preview Lab → · Contrast checker → · Palette generator →