#3B51AB

Color Details

HEX
#3B51AB
RGB
rgb(59, 81, 171)
HSL
hsl(228, 49%, 45%)
CMYK
cmyk(65%, 53%, 0%, 33%)
Best text on this color #FFFFFF (CR 7.12:1) Determined by WCAG contrast ratio

Readability Previews

Black on #3b51ab
Contrast 2.95:1 Fail
White on #3b51ab
Contrast 7.12:1 AAA
#3b51ab on Black
Contrast 2.95:1 Fail
#3b51ab on White
Contrast 7.12:1 AAA

Tints & Shades

#6274bc
#8997cd
#b1b9dd
#2f4189
#233167
#182044

Complement & Analogous

#ab943b
#5c3bab
#3b89ab

Triadic

#ab3b51
#51ab3b

Monochrome

#182044 #233167 #3b51ab #8997cd #b1b9dd #d8dcee

Analogous

#3b89ab #76acc4 #3b51ab #7d62bc #5c3bab #4a2f89

Complementary Mix

#233167 #3b51ab #8997cd #ab943b #c8b980 #6f6026

Nearby Colors

#3b51aa
#3b51ac
#3b519b
#3b51bb

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About #3B51AB

#3B51AB converts to RGB(59, 81, 171) and HSL(228, 49%, 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).

#3B51AB FAQs

What is the RGB value of #3B51AB?
RGB: 59, 81, 171. Copy as CSS: rgb(59, 81, 171)
Is #3B51AB a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #3B51AB?
Complement: #ab943b.
Does #3B51AB have good contrast on white or black?
On white: 7.12:1 (AAA (normal text)). On black: 2.95:1 (Fails AA).