#63178E#63178E

#63178E is a dark, vivid violet. Relative luminance 0.052; OKLCH L 39.7% C 0.181 H 308.9°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#63178E
RGB	rgb(99, 23, 142)
HSL	hsl(278, 72%, 32%)
HSV	hsv(278, 84%, 56%)
CMYK	cmyk(30.3%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(27.35, 51.79, -49.42)
CIE-LCH	lch(27.35, 71.58, 316.34°)
OKLab	oklab(39.74% 0.1135 -0.1405)
OKLCH	oklch(39.74% 0.181 308.9)
XYZ	xyz(10.3335, 5.2186, 26.0489)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63178E #428E17

analogous

#27178E #63178E #8E177E

triadic

#63178E #8E6317 #178E63

tetradic

#63178E #8E2717 #428E17 #177E8E

square

#63178E #8E2717 #428E17 #177E8E

split-complementary

#63178E #7E8E17 #178E27

monochromatic

#1A0625 #3E0E59 #63178E #8820C3 #A63FE0

Accessibility & contrast

On white

10.28

#63178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#63178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63178E

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63178E	#FFFFFF	#000000	##FFFFFF
##63178E	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00418C

Tritanopia (blue-blind)

#5C3754

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #63178e;
/* rgb */ color: rgb(99, 23, 142);
/* oklch */ color: oklch(39.7% 0.181 308.9);

Tailwind

colors: {
  custom: {
    50: '#945fb0',
    500: '#63178e',
    950: '#000000',
  },
}

SCSS

$custom: #63178e;
$custom-light: #945fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#63178e",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 278.319,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39735,
    "c": 0.18059,
    "h": 308.9
  },
  "luminance": 0.05218
}

Semantic roles & 50–950 ramp

primary

#63178E

secondary

#6FC040

accent

#EF397B

background

#F9F5FA

surface

#F2EAF5

border

#CCC6CF

text

#0E0511

muted

#7E7980

Preview Lab

Preview with #63178E

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

Preview Lab → · Contrast checker → · Palette generator →