#641B77#641B77

#641B77 is a dark, vivid purple. Relative luminance 0.048; OKLCH L 38.4% C 0.155 H 318.3°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#641B77
RGB	rgb(100, 27, 119)
HSL	hsl(288, 63%, 29%)
HSV	hsv(288, 77%, 47%)
CMYK	cmyk(16%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(26.23, 45.67, -36.76)
CIE-LCH	lch(26.23, 58.63, 321.16°)
OKLab	oklab(38.43% 0.116 -0.1033)
OKLCH	oklch(38.43% 0.155 318.3)
XYZ	xyz(8.9768, 4.8255, 17.9078)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B77 #2E771B

analogous

#361B77 #641B77 #771B5C

triadic

#641B77 #77641B #1B7764

tetradic

#641B77 #77361B #2E771B #1B5C77

square

#641B77 #77361B #2E771B #1B5C77

split-complementary

#641B77 #5C771B #1B7736

monochromatic

#150619 #3A1045 #641B77 #8E26A9 #B33AD2

Accessibility & contrast

On white

10.69

#641B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#641B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B77

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B77	#FFFFFF	#000000	##FFFFFF
##641B77	1.00	10.69	1.97	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397A

Deuteranopia (green-blind)

#204075

Tritanopia (blue-blind)

#642E48

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #641b77;
/* rgb */ color: rgb(100, 27, 119);
/* oklch */ color: oklch(38.4% 0.155 318.3);

Tailwind

colors: {
  custom: {
    50: '#93609f',
    500: '#641b77',
    950: '#000000',
  },
}

SCSS

$custom: #641b77;
$custom-light: #93609f;
$custom-dark: #000000;

JSON

{
  "hex": "#641b77",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 287.609,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38427,
    "c": 0.15535,
    "h": 318.3
  },
  "luminance": 0.04825
}

Semantic roles & 50–950 ramp

primary

#641B77

secondary

#58AB42

accent

#E64264

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050E

muted

#7E797E

Preview Lab

Preview with #641B77

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

Preview Lab → · Contrast checker → · Palette generator →