#631899#631899

#631899 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.8% C 0.190 H 305.2°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#631899
RGB	rgb(99, 24, 153)
HSL	hsl(275, 73%, 35%)
HSV	hsv(275, 84%, 60%)
CMYK	cmyk(35.3%, 84.3%, 0%, 40%)
CIE-LAB	lab(28.40, 53.92, -54.49)
CIE-LCH	lch(28.40, 76.66, 314.70°)
OKLab	oklab(40.75% 0.1095 -0.1554)
OKLCH	oklch(40.75% 0.19 305.2)
XYZ	xyz(11.2207, 5.6059, 30.6217)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631899 #4E9918

analogous

#231899 #631899 #99188E

triadic

#631899 #996318 #189963

tetradic

#631899 #992318 #4E9918 #188E99

square

#631899 #992318 #4E9918 #188E99

split-complementary

#631899 #8E9918 #189923

monochromatic

#1F072F #411064 #631899 #8520CE #A249E2

Accessibility & contrast

On white

9.90

#631899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#631899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631899

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631899	#FFFFFF	#000000	##FFFFFF
##631899	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419C

Deuteranopia (green-blind)

#004397

Tritanopia (blue-blind)

#593C5B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631899;
/* rgb */ color: rgb(99, 24, 153);
/* oklch */ color: oklch(40.8% 0.190 305.2);

Tailwind

colors: {
  custom: {
    50: '#9560b8',
    500: '#631899',
    950: '#000000',
  },
}

SCSS

$custom: #631899;
$custom-light: #9560b8;
$custom-dark: #000000;

JSON

{
  "hex": "#631899",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 153
  },
  "hsl": {
    "h": 274.884,
    "s": 72.881,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40753,
    "c": 0.19009,
    "h": 305.2
  },
  "luminance": 0.05606
}

Semantic roles & 50–950 ramp

primary

#631899

secondary

#7CC449

accent

#F03885

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631899

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

Preview Lab → · Contrast checker → · Palette generator →