#641F8B#641F8B

#641F8B is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.3% C 0.170 H 309.8°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#641F8B
RGB	rgb(100, 31, 139)
HSL	hsl(278, 64%, 33%)
HSV	hsv(278, 78%, 55%)
CMYK	cmyk(28.1%, 77.7%, 0%, 45.5%)
CIE-LAB	lab(28.26, 48.42, -46.07)
CIE-LCH	lch(28.26, 66.84, 316.42°)
OKLab	oklab(40.33% 0.1089 -0.1307)
OKLCH	oklch(40.33% 0.17 309.8)
XYZ	xyz(10.4048, 5.5536, 24.9449)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.07

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641F8B #468B1F

analogous

#2E1F8B #641F8B #8B1F7C

triadic

#641F8B #8B641F #1F8B64

tetradic

#641F8B #8B2E1F #468B1F #1F7C8B

square

#641F8B #8B2E1F #468B1F #1F7C8B

split-complementary

#641F8B #7C8B1F #1F8B2E

monochromatic

#1C0927 #401459 #641F8B #882ABD #A54DD7

Accessibility & contrast

On white

9.95

#641F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#641F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641F8B

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641F8B	#FFFFFF	#000000	##FFFFFF
##641F8B	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#004489

Tritanopia (blue-blind)

#5E3954

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641f8b;
/* rgb */ color: rgb(100, 31, 139);
/* oklch */ color: oklch(40.3% 0.170 309.8);

Tailwind

colors: {
  custom: {
    50: '#9463ae',
    500: '#641f8b',
    950: '#000000',
  },
}

SCSS

$custom: #641f8b;
$custom-light: #9463ae;
$custom-dark: #000000;

JSON

{
  "hex": "#641f8b",
  "rgb": {
    "r": 100,
    "g": 31,
    "b": 139
  },
  "hsl": {
    "h": 278.333,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40328,
    "c": 0.1701,
    "h": 309.8
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#641F8B

secondary

#74BA4C

accent

#E7417D

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #641F8B

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

Preview Lab → · Contrast checker → · Palette generator →