#631D90#631D90

#631D90 is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.4% C 0.177 H 307.7°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#631D90
RGB	rgb(99, 29, 144)
HSL	hsl(277, 66%, 34%)
HSV	hsv(277, 80%, 56%)
CMYK	cmyk(31.3%, 79.9%, 0%, 43.5%)
CIE-LAB	lab(28.23, 50.14, -49.22)
CIE-LCH	lch(28.23, 70.26, 315.53°)
OKLab	oklab(40.41% 0.1082 -0.1399)
OKLCH	oklch(40.41% 0.177 307.7)
XYZ	xyz(10.6179, 5.5451, 26.8911)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D90 #4A901D

analogous

#2A1D90 #631D90 #901D84

triadic

#631D90 #90631D #1D9063

tetradic

#631D90 #902A1D #4A901D #1D8490

square

#631D90 #902A1D #4A901D #1D8490

split-complementary

#631D90 #84901D #1D902A

monochromatic

#1D082A #40135D #631D90 #8627C3 #A34CDB

Accessibility & contrast

On white

9.96

#631D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#631D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D90

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D90	#FFFFFF	#000000	##FFFFFF
##631D90	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004093

Deuteranopia (green-blind)

#00438E

Tritanopia (blue-blind)

#5C3A56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631d90;
/* rgb */ color: rgb(99, 29, 144);
/* oklch */ color: oklch(40.4% 0.177 307.7);

Tailwind

colors: {
  custom: {
    50: '#9462b1',
    500: '#631d90',
    950: '#000000',
  },
}

SCSS

$custom: #631d90;
$custom-light: #9462b1;
$custom-dark: #000000;

JSON

{
  "hex": "#631d90",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 144
  },
  "hsl": {
    "h": 276.522,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.40405,
    "c": 0.17685,
    "h": 307.7
  },
  "luminance": 0.05545
}

Semantic roles & 50–950 ramp

primary

#631D90

secondary

#78BD4B

accent

#E93E81

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631D90

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

Preview Lab → · Contrast checker → · Palette generator →