#645C8F

Color Details

HEX
#645C8F
RGB
rgb(100, 92, 143)
HSL
hsl(249, 22%, 46%)
CMYK
cmyk(30%, 36%, 0%, 44%)
Best text on this color #FFFFFF (CR 6.05:1) Determined by WCAG contrast ratio

Readability Previews

Black on #645c8f
Contrast 3.47:1 Fail
White on #645c8f
Contrast 6.05:1 AA
#645c8f on Black
Contrast 3.47:1 Fail
#645c8f on White
Contrast 6.05:1 AA

Tints & Shades

#837da5
#a29dbc
#c1bed2
#504a72
#3c3756
#282539

Complement & Analogous

#878f5b
#7d5b8f
#5b6e8f

Triadic

#8f635b
#5b8f63

Monochrome

#282539 #3c3756 #645c8f #a29dbc #c1bed2 #e0dee9

Analogous

#5b6e8f #8c9ab1 #645c8f #977ca5 #7d5b8f #644972

Complementary Mix

#3c3756 #645c8f #a29dbc #878f5b #b1b694 #585d3b

Nearby Colors

#645c8e
#645c90
#645c7f
#645c9f

Embed #645C8F swatch

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About #645C8F

#645C8F converts to RGB(100, 92, 143) and HSL(249, 22%, 46%). This page provides quick readability checks, related hues (complementary and analogous), and ready-made palettes so you can drop the color into UI components, images, or CSS immediately.

Tip: Use the “Best text” chip above as a safe default foreground on this color (chosen by contrast ratio).

#645C8F FAQs

What is the RGB value of #645C8F?
RGB: 100, 92, 143. Copy as CSS: rgb(100, 92, 143)
Is #645C8F a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #645C8F?
Complement: #878f5b.
Does #645C8F have good contrast on white or black?
On white: 6.05:1 (AA (normal text)). On black: 3.47:1 (AA (large text)).