#641B87#641B87

#641B87 is a dark, vivid purple. Relative luminance 0.052; OKLCH L 39.6% C 0.170 H 311.7°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#641B87
RGB	rgb(100, 27, 135)
HSL	hsl(281, 67%, 32%)
HSV	hsv(281, 80%, 53%)
CMYK	cmyk(25.9%, 80%, 0%, 47.1%)
CIE-LAB	lab(27.42, 49.06, -44.95)
CIE-LCH	lch(27.42, 66.54, 317.51°)
OKLab	oklab(39.64% 0.1134 -0.1273)
OKLCH	oklch(39.64% 0.17 311.7)
XYZ	xyz(10.0198, 5.2427, 23.4011)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B87 #3E871B

analogous

#2E1B87 #641B87 #871B74

triadic

#641B87 #87641B #1B8764

tetradic

#641B87 #872E1B #3E871B #1B7487

square

#641B87 #872E1B #3E871B #1B7487

split-complementary

#641B87 #74871B #1B872E

monochromatic

#180721 #3E1154 #641B87 #8A25BA #A943D9

Accessibility & contrast

On white

10.25

#641B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#641B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B87

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B87	#FFFFFF	#000000	##FFFFFF
##641B87	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8A

Deuteranopia (green-blind)

#034285

Tritanopia (blue-blind)

#603551

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #641b87;
/* rgb */ color: rgb(100, 27, 135);
/* oklch */ color: oklch(39.6% 0.170 311.7);

Tailwind

colors: {
  custom: {
    50: '#9461ab',
    500: '#641b87',
    950: '#000000',
  },
}

SCSS

$custom: #641b87;
$custom-light: #9461ab;
$custom-dark: #000000;

JSON

{
  "hex": "#641b87",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 280.556,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39638,
    "c": 0.17048,
    "h": 311.7
  },
  "luminance": 0.05242
}

Semantic roles & 50–950 ramp

primary

#641B87

secondary

#6ABA44

accent

#EA3E76

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #641B87

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

Preview Lab → · Contrast checker → · Palette generator →