#631F8F#631F8F

#631F8F is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.5% C 0.174 H 307.9°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#631F8F
RGB	rgb(99, 31, 143)
HSL	hsl(276, 64%, 34%)
HSV	hsv(276, 78%, 56%)
CMYK	cmyk(30.8%, 78.3%, 0%, 43.9%)
CIE-LAB	lab(28.42, 49.14, -48.29)
CIE-LCH	lch(28.42, 68.90, 315.50°)
OKLab	oklab(40.51% 0.1066 -0.1372)
OKLCH	oklch(40.51% 0.174 307.9)
XYZ	xyz(10.5925, 5.6159, 26.5072)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F8F #4B8F1F

analogous

#2B1F8F #631F8F #8F1F83

triadic

#631F8F #8F631F #1F8F63

tetradic

#631F8F #8F2B1F #4B8F1F #1F838F

square

#631F8F #8F2B1F #4B8F1F #1F838F

split-complementary

#631F8F #838F1F #1F8F2B

monochromatic

#1D092A #40145D #631F8F #862AC1 #A34FD9

Accessibility & contrast

On white

9.89

#631F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#631F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F8F

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F8F	#FFFFFF	#000000	##FFFFFF
##631F8F	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#5C3B56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631f8f;
/* rgb */ color: rgb(99, 31, 143);
/* oklch */ color: oklch(40.5% 0.174 307.9);

Tailwind

colors: {
  custom: {
    50: '#9463b1',
    500: '#631f8f',
    950: '#000000',
  },
}

SCSS

$custom: #631f8f;
$custom-light: #9463b1;
$custom-dark: #000000;

JSON

{
  "hex": "#631f8f",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 143
  },
  "hsl": {
    "h": 276.429,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40512,
    "c": 0.17378,
    "h": 307.9
  },
  "luminance": 0.05616
}

Semantic roles & 50–950 ramp

primary

#631F8F

secondary

#79BC4E

accent

#E74082

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631F8F

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

Preview Lab → · Contrast checker → · Palette generator →