#1B3A8C

Color Details

HEX
#1B3A8C
RGB
rgb(27, 58, 140)
HSL
hsl(224, 68%, 33%)
CMYK
cmyk(81%, 59%, 0%, 45%)
Best text on this color #FFFFFF (CR 10.34:1) Determined by WCAG contrast ratio

Readability Previews

Black on #1b3a8c
Contrast 2.03:1 Fail
White on #1b3a8c
Contrast 10.34:1 AAA
#1b3a8c on Black
Contrast 2.03:1 Fail
#1b3a8c on White
Contrast 10.34:1 AAA

Tints & Shades

#4961a3
#7689ba
#a4b0d1
#162e70
#102354
#0b1738

Complement & Analogous

#8d6f1b
#361b8d
#1b738d

Triadic

#8d1b39
#398d1b

Monochrome

#0b1738 #102354 #1b3a8c #7689ba #a4b0d1 #d1d8e8

Analogous

#1b738d #5f9daf #1b3a8c #5e49a4 #361b8d #2b1671

Complementary Mix

#102354 #1b3a8c #7689ba #8d6f1b #b5a16b #5c4812

Nearby Colors

#1b3a8b
#1b3a8d
#1b3a7c
#1b3a9c

Embed #1B3A8C swatch

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About #1B3A8C

#1B3A8C converts to RGB(27, 58, 140) and HSL(224, 68%, 33%). 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).

#1B3A8C FAQs

What is the RGB value of #1B3A8C?
RGB: 27, 58, 140. Copy as CSS: rgb(27, 58, 140)
Is #1B3A8C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #1B3A8C?
Complement: #8d6f1b.
Does #1B3A8C have good contrast on white or black?
On white: 10.34:1 (AAA (normal text)). On black: 2.03:1 (Fails AA).