#641B88#641B88

#641B88 is a dark, vivid purple. Relative luminance 0.053; OKLCH L 39.7% C 0.171 H 311.3°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#641B88
RGB	rgb(100, 27, 136)
HSL	hsl(280, 67%, 32%)
HSV	hsv(280, 80%, 53%)
CMYK	cmyk(26.5%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(27.49, 49.28, -45.44)
CIE-LCH	lch(27.49, 67.04, 317.32°)
OKLab	oklab(39.72% 0.1132 -0.1288)
OKLCH	oklch(39.72% 0.171 311.3)
XYZ	xyz(10.0906, 5.2710, 23.7736)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B88 #3F881B

analogous

#2D1B88 #641B88 #881B76

triadic

#641B88 #88641B #1B8864

tetradic

#641B88 #882D1B #3F881B #1B7688

square

#641B88 #882D1B #3F881B #1B7688

split-complementary

#641B88 #76881B #1B882D

monochromatic

#190722 #3E1155 #641B88 #8A25BB #A844DA

Accessibility & contrast

On white

10.22

#641B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#641B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B88

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B88	#FFFFFF	#000000	##FFFFFF
##641B88	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8B

Deuteranopia (green-blind)

#004286

Tritanopia (blue-blind)

#5F3651

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #641b88;
/* rgb */ color: rgb(100, 27, 136);
/* oklch */ color: oklch(39.7% 0.171 311.3);

Tailwind

colors: {
  custom: {
    50: '#9461ab',
    500: '#641b88',
    950: '#000000',
  },
}

SCSS

$custom: #641b88;
$custom-light: #9461ab;
$custom-dark: #000000;

JSON

{
  "hex": "#641b88",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 280.183,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39717,
    "c": 0.17143,
    "h": 311.3
  },
  "luminance": 0.05271
}

Semantic roles & 50–950 ramp

primary

#641B88

secondary

#6BBB44

accent

#EA3E77

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #641B88

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

Preview Lab → · Contrast checker → · Palette generator →