#63178D#63178D

#63178D is a dark, vivid violet. Relative luminance 0.052; OKLCH L 39.7% C 0.180 H 309.3°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#63178D
RGB	rgb(99, 23, 141)
HSL	hsl(279, 72%, 32%)
HSV	hsv(279, 84%, 55%)
CMYK	cmyk(29.8%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(27.27, 51.57, -48.93)
CIE-LCH	lch(27.27, 71.09, 316.50°)
OKLab	oklab(39.65% 0.1138 -0.139)
OKLCH	oklch(39.65% 0.18 309.3)
XYZ	xyz(10.2587, 5.1887, 25.6552)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63178D #418D17

analogous

#28178D #63178D #8D177C

triadic

#63178D #8D6317 #178D63

tetradic

#63178D #8D2817 #418D17 #177C8D

square

#63178D #8D2817 #418D17 #177C8D

split-complementary

#63178D #7C8D17 #178D28

monochromatic

#190624 #3E0E58 #63178D #8820C2 #A63FE0

Accessibility & contrast

On white

10.31

#63178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#63178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63178D

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63178D	#FFFFFF	#000000	##FFFFFF
##63178D	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#5D3653

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #63178d;
/* rgb */ color: rgb(99, 23, 141);
/* oklch */ color: oklch(39.7% 0.180 309.3);

Tailwind

colors: {
  custom: {
    50: '#945faf',
    500: '#63178d',
    950: '#000000',
  },
}

SCSS

$custom: #63178d;
$custom-light: #945faf;
$custom-dark: #000000;

JSON

{
  "hex": "#63178d",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 278.644,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39652,
    "c": 0.17965,
    "h": 309.3
  },
  "luminance": 0.05189
}

Semantic roles & 50–950 ramp

primary

#63178D

secondary

#6DC040

accent

#EF397A

background

#F9F5FA

surface

#F2EAF5

border

#CCC6CF

text

#0E0510

muted

#7E797F

Preview Lab

Preview with #63178D

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

Preview Lab → · Contrast checker → · Palette generator →