#0B3F8C

Color Details

HEX
#0B3F8C
RGB
rgb(11, 63, 140)
HSL
hsl(216, 85%, 30%)
CMYK
cmyk(92%, 55%, 0%, 45%)
Best text on this color #FFFFFF (CR 9.98:1) Determined by WCAG contrast ratio

Readability Previews

Black on #0b3f8c
Contrast 2.10:1 Fail
White on #0b3f8c
Contrast 9.98:1 AAA
#0b3f8c on Black
Contrast 2.10:1 Fail
#0b3f8c on White
Contrast 9.98:1 AAA

Tints & Shades

#3c65a3
#6d8cba
#9db2d1
#093270
#072654
#041938

Complement & Analogous

#8e5a0b
#180b8e
#0b818e

Triadic

#8e0b3f
#3f8e0b

Monochrome

#041938 #072654 #0b3f8c #6d8cba #9db2d1 #ced9e8

Analogous

#0b818e #54a7b0 #0b3f8c #463ca5 #180b8e #130972

Complementary Mix

#072654 #0b3f8c #6d8cba #8e5a0b #b69460 #5c3b07

Nearby Colors

#0b3f8b
#0b3f8d
#0b3f7c
#0b3f9c

Embed #0B3F8C swatch

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About #0B3F8C

#0B3F8C converts to RGB(11, 63, 140) and HSL(216, 85%, 30%). 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).

#0B3F8C FAQs

What is the RGB value of #0B3F8C?
RGB: 11, 63, 140. Copy as CSS: rgb(11, 63, 140)
Is #0B3F8C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #0B3F8C?
Complement: #8e5a0b.
Does #0B3F8C have good contrast on white or black?
On white: 9.98:1 (AAA (normal text)). On black: 2.10:1 (Fails AA).