#645C74#645C74

#645C74 is a mid, muted violet. Relative luminance 0.116; OKLCH L 49.1% C 0.039 H 300.2°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#645C74
RGB	rgb(100, 92, 116)
HSL	hsl(260, 12%, 41%)
HSV	hsv(260, 21%, 45%)
CMYK	cmyk(13.8%, 20.7%, 0%, 54.5%)
CIE-LAB	lab(40.61, 8.43, -12.40)
CIE-LCH	lch(40.61, 14.99, 304.22°)
OKLab	oklab(49.13% 0.0196 -0.0337)
OKLCH	oklch(49.13% 0.039 300.2)
XYZ	xyz(12.2344, 11.6246, 18.1188)
Luminance	0.1163 (WCAG relative)
Temperature	neutral
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C74 #6C745C

analogous

#5C6074 #645C74 #705C74

triadic

#645C74 #74645C #5C7464

tetradic

#645C74 #745C60 #6C745C #5C7470

square

#645C74 #745C60 #6C745C #5C7470

split-complementary

#645C74 #74705C #60745C

monochromatic

#292630 #474152 #645C74 #827994 #A29BB0

Accessibility & contrast

On white

6.32

#645C74 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#645C74 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C74

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C74	#FFFFFF	#000000	##FFFFFF
##645C74	1.00	6.32	3.33	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576075

Deuteranopia (green-blind)

#596073

Tritanopia (blue-blind)

#615F64

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #645c74;
/* rgb */ color: rgb(100, 92, 116);
/* oklch */ color: oklch(49.1% 0.039 300.2);

Tailwind

colors: {
  custom: {
    50: '#908a9c',
    500: '#645c74',
    950: '#000000',
  },
}

SCSS

$custom: #645c74;
$custom-light: #908a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#645c74",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 116
  },
  "hsl": {
    "h": 260,
    "s": 11.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49125,
    "c": 0.03898,
    "h": 300.2
  },
  "luminance": 0.11625
}

Semantic roles & 50–950 ramp

primary

#645C74

secondary

#999E8D

accent

#B4739F

background

#F8F8F9

surface

#F0F0F2

border

#CBCBCC

text

#0C0B0E

muted

#7D7C7E

Preview Lab

Preview with #645C74

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

Preview Lab → · Contrast checker → · Palette generator →