#631181#631181

#631181 is a dark, vivid purple. Relative luminance 0.046; OKLCH L 38.2% C 0.174 H 314.2°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#631181
RGB	rgb(99, 17, 129)
HSL	hsl(284, 77%, 29%)
HSV	hsv(284, 87%, 51%)
CMYK	cmyk(23.3%, 86.8%, 0%, 49.4%)
CIE-LAB	lab(25.68, 50.81, -44.00)
CIE-LCH	lch(25.68, 67.21, 319.11°)
OKLab	oklab(38.24% 0.1212 -0.1245)
OKLCH	oklch(38.24% 0.174 314.2)
XYZ	xyz(9.3078, 4.6389, 21.1697)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.23

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631181 #2F8111

analogous

#2B1181 #631181 #811167

triadic

#631181 #816311 #118163

tetradic

#631181 #812B11 #2F8111 #116781

square

#631181 #812B11 #2F8111 #116781

split-complementary

#631181 #678111 #11812B

monochromatic

#15041B #3A0A4B #631181 #8C18B7 #B12AE3

Accessibility & contrast

On white

10.89

#631181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#631181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631181

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631181	#FFFFFF	#000000	##FFFFFF
##631181	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003984

Deuteranopia (green-blind)

#023F7F

Tritanopia (blue-blind)

#602E4B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #631181;
/* rgb */ color: rgb(99, 17, 129);
/* oklch */ color: oklch(38.2% 0.174 314.2);

Tailwind

colors: {
  custom: {
    50: '#945ca6',
    500: '#631181',
    950: '#000000',
  },
}

SCSS

$custom: #631181;
$custom-light: #945ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#631181",
  "rgb": {
    "r": 99,
    "g": 17,
    "b": 129
  },
  "hsl": {
    "h": 283.929,
    "s": 76.712,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38242,
    "c": 0.17374,
    "h": 314.2
  },
  "luminance": 0.04639
}

Semantic roles & 50–950 ramp

primary

#631181

secondary

#59B737

accent

#F33568

background

#F9F5FA

surface

#F2E9F4

border

#CCC5CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #631181

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

Preview Lab → · Contrast checker → · Palette generator →