#631F8E#631F8E

#631F8E is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.4% C 0.173 H 308.2°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#631F8E
RGB	rgb(99, 31, 142)
HSL	hsl(277, 64%, 34%)
HSV	hsv(277, 78%, 56%)
CMYK	cmyk(30.3%, 78.2%, 0%, 44.3%)
CIE-LAB	lab(28.34, 48.91, -47.80)
CIE-LCH	lch(28.34, 68.39, 315.66°)
OKLab	oklab(40.43% 0.1069 -0.1358)
OKLCH	oklch(40.43% 0.173 308.2)
XYZ	xyz(10.5170, 5.5858, 26.1101)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F8E #4A8E1F

analogous

#2C1F8E #631F8E #8E1F82

triadic

#631F8E #8E631F #1F8E63

tetradic

#631F8E #8E2C1F #4A8E1F #1F828E

square

#631F8E #8E2C1F #4A8E1F #1F828E

split-complementary

#631F8E #828E1F #1F8E2C

monochromatic

#1D092A #40145C #631F8E #862AC0 #A34FD9

Accessibility & contrast

On white

9.92

#631F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#631F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F8E

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F8E	#FFFFFF	#000000	##FFFFFF
##631F8E	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#5C3A56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631f8e;
/* rgb */ color: rgb(99, 31, 142);
/* oklch */ color: oklch(40.4% 0.173 308.2);

Tailwind

colors: {
  custom: {
    50: '#9463b0',
    500: '#631f8e',
    950: '#000000',
  },
}

SCSS

$custom: #631f8e;
$custom-light: #9463b0;
$custom-dark: #000000;

JSON

{
  "hex": "#631f8e",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 142
  },
  "hsl": {
    "h": 276.757,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.40431,
    "c": 0.17278,
    "h": 308.2
  },
  "luminance": 0.05586
}

Semantic roles & 50–950 ramp

primary

#631F8E

secondary

#78BB4D

accent

#E74181

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #631F8E

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

Preview Lab → · Contrast checker → · Palette generator →