#642C7B#642C7B

#642C7B is a dark, vivid purple. Relative luminance 0.059; OKLCH L 40.7% C 0.136 H 314.8°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#642C7B
RGB	rgb(100, 44, 123)
HSL	hsl(283, 47%, 33%)
HSV	hsv(283, 64%, 48%)
CMYK	cmyk(18.7%, 64.2%, 0%, 51.8%)
CIE-LAB	lab(29.26, 38.80, -34.44)
CIE-LCH	lch(29.26, 51.88, 318.41°)
OKLab	oklab(40.69% 0.0958 -0.0966)
OKLCH	oklch(40.69% 0.136 314.8)
XYZ	xyz(9.7308, 5.9411, 19.3692)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 8.57

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642C7B #437B2C

analogous

#3D2C7B #642C7B #7B2C6A

triadic

#642C7B #7B642C #2C7B64

tetradic

#642C7B #7B3D2C #437B2C #2C6A7B

square

#642C7B #7B3D2C #437B2C #2C6A7B

split-complementary

#642C7B #6A7B2C #2C7B3D

monochromatic

#1B0C21 #3F1C4E #642C7B #893CA8 #A65DC5

Accessibility & contrast

On white

9.60

#642C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#642C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642C7B

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642C7B	#FFFFFF	#000000	##FFFFFF
##642C7B	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10427D

Deuteranopia (green-blind)

#2A4679

Tritanopia (blue-blind)

#623A4F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #642c7b;
/* rgb */ color: rgb(100, 44, 123);
/* oklch */ color: oklch(40.7% 0.136 314.8);

Tailwind

colors: {
  custom: {
    50: '#9369a2',
    500: '#642c7b',
    950: '#000000',
  },
}

SCSS

$custom: #642c7b;
$custom-light: #9369a2;
$custom-dark: #000000;

JSON

{
  "hex": "#642c7b",
  "rgb": {
    "r": 100,
    "g": 44,
    "b": 123
  },
  "hsl": {
    "h": 282.532,
    "s": 47.305,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40688,
    "c": 0.13608,
    "h": 314.8
  },
  "luminance": 0.05941
}

Semantic roles & 50–950 ramp

primary

#642C7B

secondary

#70AB58

accent

#D75178

background

#F9F6FA

surface

#F2EBF3

border

#CCC6CD

text

#0D060F

muted

#7E7A7F

Preview Lab

Preview with #642C7B

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

Preview Lab → · Contrast checker → · Palette generator →