#631783#631783

#631783 is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.8% C 0.170 H 313.0°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#631783
RGB	rgb(99, 23, 131)
HSL	hsl(282, 70%, 30%)
HSV	hsv(282, 82%, 51%)
CMYK	cmyk(24.4%, 82.4%, 0%, 48.6%)
CIE-LAB	lab(26.46, 49.41, -43.99)
CIE-LCH	lch(26.46, 66.16, 318.32°)
OKLab	oklab(38.84% 0.1163 -0.1245)
OKLCH	oklch(38.84% 0.17 313)
XYZ	xyz(9.5480, 4.9044, 21.9120)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.49

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631783 #378317

analogous

#2D1783 #631783 #83176D

triadic

#631783 #836317 #178363

tetradic

#631783 #832D17 #378317 #176D83

square

#631783 #832D17 #378317 #176D83

split-complementary

#631783 #6D8317 #17832D

monochromatic

#14051B #3C0E4F #631783 #8A20B7 #AC38DC

Accessibility & contrast

On white

10.60

#631783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#631783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631783

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631783	#FFFFFF	#000000	##FFFFFF
##631783	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B86

Deuteranopia (green-blind)

#054081

Tritanopia (blue-blind)

#5F324E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #631783;
/* rgb */ color: rgb(99, 23, 131);
/* oklch */ color: oklch(38.8% 0.170 313.0);

Tailwind

colors: {
  custom: {
    50: '#945fa8',
    500: '#631783',
    950: '#000000',
  },
}

SCSS

$custom: #631783;
$custom-light: #945fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#631783",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 131
  },
  "hsl": {
    "h": 282.222,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.38837,
    "c": 0.17036,
    "h": 313
  },
  "luminance": 0.04904
}

Semantic roles & 50–950 ramp

primary

#631783

secondary

#62B73F

accent

#ED3B70

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E0510

muted

#7E797F

Preview Lab

Preview with #631783

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

Preview Lab → · Contrast checker → · Palette generator →