#631D8F#631D8F

#631D8F is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.3% C 0.176 H 308.1°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#631D8F
RGB	rgb(99, 29, 143)
HSL	hsl(277, 66%, 34%)
HSV	hsv(277, 80%, 56%)
CMYK	cmyk(30.8%, 79.7%, 0%, 43.9%)
CIE-LAB	lab(28.15, 49.91, -48.73)
CIE-LCH	lch(28.15, 69.76, 315.69°)
OKLab	oklab(40.32% 0.1084 -0.1385)
OKLCH	oklch(40.32% 0.176 308.1)
XYZ	xyz(10.5418, 5.5147, 26.4904)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D8F #498F1D

analogous

#2A1D8F #631D8F #8F1D82

triadic

#631D8F #8F631D #1D8F63

tetradic

#631D8F #8F2A1D #498F1D #1D828F

square

#631D8F #8F2A1D #498F1D #1D828F

split-complementary

#631D8F #828F1D #1D8F2A

monochromatic

#1D0829 #40135C #631D8F #8627C2 #A34CDB

Accessibility & contrast

On white

9.99

#631D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#631D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D8F

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D8F	#FFFFFF	#000000	##FFFFFF
##631D8F	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#5C3A56

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631d8f;
/* rgb */ color: rgb(99, 29, 143);
/* oklch */ color: oklch(40.3% 0.176 308.1);

Tailwind

colors: {
  custom: {
    50: '#9462b1',
    500: '#631d8f',
    950: '#000000',
  },
}

SCSS

$custom: #631d8f;
$custom-light: #9462b1;
$custom-dark: #000000;

JSON

{
  "hex": "#631d8f",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 143
  },
  "hsl": {
    "h": 276.842,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40323,
    "c": 0.17587,
    "h": 308.1
  },
  "luminance": 0.05515
}

Semantic roles & 50–950 ramp

primary

#631D8F

secondary

#77BD4B

accent

#E93F80

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631D8F

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

Preview Lab → · Contrast checker → · Palette generator →