#645A74#645A74

#645A74 is a mid, muted violet. Relative luminance 0.113; OKLCH L 48.7% C 0.043 H 302.4°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#645A74
RGB	rgb(100, 90, 116)
HSL	hsl(263, 13%, 40%)
HSV	hsv(263, 22%, 45%)
CMYK	cmyk(13.8%, 22.4%, 0%, 54.5%)
CIE-LAB	lab(40.05, 9.67, -13.25)
CIE-LCH	lch(40.05, 16.40, 306.12°)
OKLab	oklab(48.69% 0.0229 -0.036)
OKLCH	oklch(48.69% 0.043 302.4)
XYZ	xyz(12.0635, 11.2826, 18.0618)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A74 #6A745A

analogous

#5A5D74 #645A74 #715A74

triadic

#645A74 #74645A #5A7464

tetradic

#645A74 #745A5D #6A745A #5A7471

square

#645A74 #745A5D #6A745A #5A7471

split-complementary

#645A74 #74715A #5D745A

monochromatic

#29252F #463F52 #645A74 #827695 #A299B0

Accessibility & contrast

On white

6.45

#645A74 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#645A74 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A74

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A74	#FFFFFF	#000000	##FFFFFF
##645A74	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555E75

Deuteranopia (green-blind)

#575E73

Tritanopia (blue-blind)

#625E63

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #645a74;
/* rgb */ color: rgb(100, 90, 116);
/* oklch */ color: oklch(48.7% 0.043 302.4);

Tailwind

colors: {
  custom: {
    50: '#90889c',
    500: '#645a74',
    950: '#000000',
  },
}

SCSS

$custom: #645a74;
$custom-light: #90889c;
$custom-dark: #000000;

JSON

{
  "hex": "#645a74",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 116
  },
  "hsl": {
    "h": 263.077,
    "s": 12.621,
    "l": 40.392
  },
  "oklch": {
    "l": 0.48691,
    "c": 0.04269,
    "h": 302.4
  },
  "luminance": 0.11283
}

Semantic roles & 50–950 ramp

primary

#645A74

secondary

#979E8C

accent

#B5729C

background

#F8F8F9

surface

#F0EFF2

border

#CBCACC

text

#0C0B0E

muted

#7D7C7E

Preview Lab

Preview with #645A74

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

Preview Lab → · Contrast checker → · Palette generator →