#645C76#645C76

#645C76 is a mid, muted violet. Relative luminance 0.117; OKLCH L 49.2% C 0.042 H 298.9°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#645C76
RGB	rgb(100, 92, 118)
HSL	hsl(258, 12%, 41%)
HSV	hsv(258, 22%, 46%)
CMYK	cmyk(15.3%, 22%, 0%, 53.7%)
CIE-LAB	lab(40.69, 8.91, -13.51)
CIE-LCH	lch(40.69, 16.18, 303.42°)
OKLab	oklab(49.21% 0.0203 -0.0368)
OKLCH	oklch(49.21% 0.042 298.9)
XYZ	xyz(12.3520, 11.6716, 18.7381)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C76 #6E765C

analogous

#5C6176 #645C76 #715C76

triadic

#645C76 #76645C #5C7664

tetradic

#645C76 #765C61 #6E765C #5C7671

square

#645C76 #765C61 #6E765C #5C7671

split-complementary

#645C76 #76715C #61765C

monochromatic

#2A2631 #474154 #645C76 #827996 #A29BB1

Accessibility & contrast

On white

6.30

#645C76 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#645C76 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C76

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C76	#FFFFFF	#000000	##FFFFFF
##645C76	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576077

Deuteranopia (green-blind)

#586075

Tritanopia (blue-blind)

#616065

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #645c76;
/* rgb */ color: rgb(100, 92, 118);
/* oklch */ color: oklch(49.2% 0.042 298.9);

Tailwind

colors: {
  custom: {
    50: '#908a9d',
    500: '#645c76',
    950: '#000000',
  },
}

SCSS

$custom: #645c76;
$custom-light: #908a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#645c76",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 118
  },
  "hsl": {
    "h": 258.462,
    "s": 12.381,
    "l": 41.176
  },
  "oklch": {
    "l": 0.4921,
    "c": 0.04204,
    "h": 298.9
  },
  "luminance": 0.11672
}

Semantic roles & 50–950 ramp

primary

#645C76

secondary

#9AA08E

accent

#B573A1

background

#F8F8F9

surface

#F0F0F2

border

#CBCBCC

text

#0C0B0E

muted

#7D7C7E

Preview Lab

Preview with #645C76

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

Preview Lab → · Contrast checker → · Palette generator →