#631C8F#631C8F

#631C8F is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.2% C 0.177 H 308.2°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#631C8F
RGB	rgb(99, 28, 143)
HSL	hsl(277, 67%, 34%)
HSV	hsv(277, 80%, 56%)
CMYK	cmyk(30.8%, 80.4%, 0%, 43.9%)
CIE-LAB	lab(28.02, 50.29, -48.94)
CIE-LCH	lch(28.02, 70.17, 315.78°)
OKLab	oklab(40.23% 0.1093 -0.1391)
OKLCH	oklch(40.23% 0.177 308.2)
XYZ	xyz(10.5177, 5.4665, 26.4823)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C8F #488F1C

analogous

#291C8F #631C8F #8F1C81

triadic

#631C8F #8F631C #1C8F63

tetradic

#631C8F #8F291C #488F1C #1C818F

square

#631C8F #8F291C #488F1C #1C818F

split-complementary

#631C8F #818F1C #1C8F29

monochromatic

#1C0829 #40125C #631C8F #8626C2 #A44ADC

Accessibility & contrast

On white

10.03

#631C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#631C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C8F

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C8F	#FFFFFF	#000000	##FFFFFF
##631C8F	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#5C3956

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631c8f;
/* rgb */ color: rgb(99, 28, 143);
/* oklch */ color: oklch(40.2% 0.177 308.2);

Tailwind

colors: {
  custom: {
    50: '#9461b1',
    500: '#631c8f',
    950: '#000000',
  },
}

SCSS

$custom: #631c8f;
$custom-light: #9461b1;
$custom-dark: #000000;

JSON

{
  "hex": "#631c8f",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 143
  },
  "hsl": {
    "h": 277.043,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40233,
    "c": 0.17688,
    "h": 308.2
  },
  "luminance": 0.05466
}

Semantic roles & 50–950 ramp

primary

#631C8F

secondary

#76BE49

accent

#EA3E80

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631C8F

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

Preview Lab → · Contrast checker → · Palette generator →