#645A8C

Color Details

HEX
#645A8C
RGB
rgb(100, 90, 140)
HSL
hsl(252, 22%, 45%)
CMYK
cmyk(29%, 36%, 0%, 45%)
Best text on this color #FFFFFF (CR 6.21:1) Determined by WCAG contrast ratio

Readability Previews

Black on #645a8c
Contrast 3.38:1 Fail
White on #645a8c
Contrast 6.21:1 AA
#645a8c on Black
Contrast 3.38:1 Fail
#645a8c on White
Contrast 6.21:1 AA

Tints & Shades

#837ba3
#a29cba
#c1bdd1
#504870
#3c3654
#282438

Complement & Analogous

#828c5a
#7d5a8c
#5a698c

Triadic

#8c645a
#5a8c64

Monochrome

#282438 #3c3654 #645a8c #a29cba #c1bdd1 #e0dee8

Analogous

#5a698c #8c96af #645a8c #977ba3 #7d5a8c #644870

Complementary Mix

#3c3654 #645a8c #a29cba #828c5a #aeb494 #555b3b

Nearby Colors

#645a8b
#645a8d
#645a7c
#645a9c

Embed #645A8C swatch

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About #645A8C

#645A8C converts to RGB(100, 90, 140) and HSL(252, 22%, 45%). 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).

#645A8C FAQs

What is the RGB value of #645A8C?
RGB: 100, 90, 140. Copy as CSS: rgb(100, 90, 140)
Is #645A8C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #645A8C?
Complement: #828c5a.
Does #645A8C have good contrast on white or black?
On white: 6.21:1 (AA (normal text)). On black: 3.38:1 (AA (large text)).