#0B51CB

Color Details

HEX
#0B51CB
RGB
rgb(11, 81, 203)
HSL
hsl(218, 90%, 42%)
CMYK
cmyk(95%, 60%, 0%, 20%)
Best text on this color #FFFFFF (CR 6.88:1) Determined by WCAG contrast ratio

Readability Previews

Black on #0b51cb
Contrast 3.05:1 Fail
White on #0b51cb
Contrast 6.88:1 AA
#0b51cb on Black
Contrast 3.05:1 Fail
#0b51cb on White
Contrast 6.88:1 AA

Tints & Shades

#3c74d5
#6d97e0
#9db9ea
#0941a2
#07317a
#042051

Complement & Analogous

#cb850b
#240bcb
#0bb2cb

Triadic

#cb0b51
#51cb0b

Monochrome

#042051 #07317a #0b51cb #6d97e0 #9db9ea #cedcf5

Analogous

#0bb2cb #54c9db #0b51cb #503cd5 #240bcb #1d09a2

Complementary Mix

#07317a #0b51cb #6d97e0 #cb850b #ddb060 #845607

Nearby Colors

#0b51ca
#0b51cc
#0b51bb
#0b51db

Embed #0B51CB swatch

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About #0B51CB

#0B51CB converts to RGB(11, 81, 203) and HSL(218, 90%, 42%). 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).

#0B51CB FAQs

What is the RGB value of #0B51CB?
RGB: 11, 81, 203. Copy as CSS: rgb(11, 81, 203)
Is #0B51CB a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #0B51CB?
Complement: #cb850b.
Does #0B51CB have good contrast on white or black?
On white: 6.88:1 (AA (normal text)). On black: 3.05:1 (AA (large text)).