#631F97#631F97

#631F97 is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.2% C 0.182 H 305.2°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#631F97
RGB	rgb(99, 31, 151)
HSL	hsl(274, 66%, 36%)
HSV	hsv(274, 79%, 59%)
CMYK	cmyk(34.4%, 79.5%, 0%, 40.8%)
CIE-LAB	lab(29.07, 50.99, -52.16)
CIE-LCH	lch(29.07, 72.94, 314.35°)
OKLab	oklab(41.17% 0.1047 -0.1486)
OKLCH	oklch(41.17% 0.182 305.2)
XYZ	xyz(11.2202, 5.8671, 29.8135)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 8.16

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F97 #53971F

analogous

#271F97 #631F97 #971F8F

triadic

#631F97 #97631F #1F9763

tetradic

#631F97 #97271F #53971F #1F8F97

square

#631F97 #97271F #53971F #1F8F97

split-complementary

#631F97 #8F971F #1F9727

monochromatic

#200A31 #421564 #631F97 #8429CA #A154DC

Accessibility & contrast

On white

9.66

#631F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#631F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F97

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F97	#FFFFFF	#000000	##FFFFFF
##631F97	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439A

Deuteranopia (green-blind)

#004595

Tritanopia (blue-blind)

#593E5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #631f97;
/* rgb */ color: rgb(99, 31, 151);
/* oklch */ color: oklch(41.2% 0.182 305.2);

Tailwind

colors: {
  custom: {
    50: '#9563b6',
    500: '#631f97',
    950: '#000000',
  },
}

SCSS

$custom: #631f97;
$custom-light: #9563b6;
$custom-dark: #000000;

JSON

{
  "hex": "#631f97",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 151
  },
  "hsl": {
    "h": 274,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41173,
    "c": 0.18176,
    "h": 305.2
  },
  "luminance": 0.05867
}

Semantic roles & 50–950 ramp

primary

#631F97

secondary

#82BF52

accent

#E93F89

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631F97

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

Preview Lab → · Contrast checker → · Palette generator →