#666E8C

Color Details

HEX
#666E8C
RGB
rgb(102, 110, 140)
HSL
hsl(227, 16%, 47%)
CMYK
cmyk(27%, 21%, 0%, 45%)
Best text on this color #FFFFFF (CR 5.03:1) Determined by WCAG contrast ratio

Readability Previews

Black on #666e8c
Contrast 4.17:1 Fail
White on #666e8c
Contrast 5.03:1 AA
#666e8c on Black
Contrast 4.17:1 Fail
#666e8c on White
Contrast 5.03:1 AA

Tints & Shades

#858ba3
#a3a8ba
#c2c5d1
#525870
#3d4254
#292c38

Complement & Analogous

#8b8365
#6c5d92
#5d8392

Triadic

#8b656d
#6d8b65

Monochrome

#292c38 #3d4254 #666e8c #a3a8ba #c2c5d1 #e0e2e8

Analogous

#5d8392 #8ea8b3 #666e8c #897da8 #6c5d92 #564a75

Complementary Mix

#3d4254 #666e8c #a3a8ba #8b8365 #b4ae9b #5a5542

Nearby Colors

#666e8b
#666e8d
#666e7c
#666e9c

Embed #666E8C swatch

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About #666E8C

#666E8C converts to RGB(102, 110, 140) and HSL(227, 16%, 47%). 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).

#666E8C FAQs

What is the RGB value of #666E8C?
RGB: 102, 110, 140. Copy as CSS: rgb(102, 110, 140)
Is #666E8C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #666E8C?
Complement: #8b8365.
Does #666E8C have good contrast on white or black?
On white: 5.03:1 (AA (normal text)). On black: 4.17:1 (AA (large text)).