#645C78#645C78

#645C78 is a mid, muted violet. Relative luminance 0.117; OKLCH L 49.3% C 0.045 H 297.8°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#645C78
RGB	rgb(100, 92, 120)
HSL	hsl(257, 13%, 42%)
HSV	hsv(257, 23%, 47%)
CMYK	cmyk(16.7%, 23.3%, 0%, 52.9%)
CIE-LAB	lab(40.77, 9.39, -14.61)
CIE-LCH	lch(40.77, 17.37, 302.74°)
OKLab	oklab(49.3% 0.021 -0.0399)
OKLCH	oklch(49.3% 0.045 297.8)
XYZ	xyz(12.4721, 11.7196, 19.3707)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C78 #70785C

analogous

#5C6278 #645C78 #725C78

triadic

#645C78 #78645C #5C7864

tetradic

#645C78 #785C62 #70785C #5C7872

square

#645C78 #785C62 #70785C #5C7872

split-complementary

#645C78 #78725C #62785C

monochromatic

#2A2733 #474155 #645C78 #827998 #A29CB3

Accessibility & contrast

On white

6.28

#645C78 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#645C78 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C78

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C78	#FFFFFF	#000000	##FFFFFF
##645C78	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566079

Deuteranopia (green-blind)

#576077

Tritanopia (blue-blind)

#606066

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #645c78;
/* rgb */ color: rgb(100, 92, 120);
/* oklch */ color: oklch(49.3% 0.045 297.8);

Tailwind

colors: {
  custom: {
    50: '#908a9f',
    500: '#645c78',
    950: '#000000',
  },
}

SCSS

$custom: #645c78;
$custom-light: #908a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#645c78",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 120
  },
  "hsl": {
    "h": 257.143,
    "s": 13.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49295,
    "c": 0.04509,
    "h": 297.8
  },
  "luminance": 0.1172
}

Semantic roles & 50–950 ramp

primary

#645C78

secondary

#9CA18E

accent

#B672A3

background

#F8F8F9

surface

#F0F0F2

border

#CBCBCC

text

#0C0B0E

muted

#7D7C7E

Preview Lab

Preview with #645C78

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

Preview Lab → · Contrast checker → · Palette generator →