#3B51BB

Color Details

HEX
#3B51BB
RGB
rgb(59, 81, 187)
HSL
hsl(230, 52%, 48%)
CMYK
cmyk(68%, 57%, 0%, 27%)
Best text on this color #FFFFFF (CR 6.82:1) Determined by WCAG contrast ratio

Readability Previews

Black on #3b51bb
Contrast 3.08:1 Fail
White on #3b51bb
Contrast 6.82:1 AA
#3b51bb on Black
Contrast 3.08:1 Fail
#3b51bb on White
Contrast 6.82:1 AA

Tints & Shades

#6274c9
#8997d6
#b1b9e4
#2f4196
#233170
#18204b

Complement & Analogous

#baa53b
#653bba
#3b90ba

Triadic

#ba3b50
#50ba3b

Monochrome

#18204b #233170 #3b51bb #8997d6 #b1b9e4 #d8dcf1

Analogous

#3b90ba #76b1cf #3b51bb #8462c8 #653bba #512f95

Complementary Mix

#233170 #3b51bb #8997d6 #baa53b #d2c580 #796b26

Nearby Colors

#3b51ba
#3b51bc
#3b51ab
#3b51cb

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About #3B51BB

#3B51BB converts to RGB(59, 81, 187) and HSL(230, 52%, 48%). 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).

#3B51BB FAQs

What is the RGB value of #3B51BB?
RGB: 59, 81, 187. Copy as CSS: rgb(59, 81, 187)
Is #3B51BB a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #3B51BB?
Complement: #baa53b.
Does #3B51BB have good contrast on white or black?
On white: 6.82:1 (AA (normal text)). On black: 3.08:1 (AA (large text)).