#1B51B2

Color Details

HEX
#1B51B2
RGB
rgb(27, 81, 178)
HSL
hsl(219, 74%, 40%)
CMYK
cmyk(85%, 54%, 0%, 30%)
Best text on this color #FFFFFF (CR 7.33:1) Determined by WCAG contrast ratio

Readability Previews

Black on #1b51b2
Contrast 2.87:1 Fail
White on #1b51b2
Contrast 7.33:1 AAA
#1b51b2 on Black
Contrast 2.87:1 Fail
#1b51b2 on White
Contrast 7.33:1 AAA

Tints & Shades

#4974c1
#7697d1
#a4b9e0
#16418e
#10316b
#0b2047

Complement & Analogous

#b17d1b
#311bb1
#1b9bb1

Triadic

#b11b4f
#4fb11b

Monochrome

#0b2047 #10316b #1b51b2 #7697d1 #a4b9e0 #d1dcf0

Analogous

#1b9bb1 #5fb9c8 #1b51b2 #5a49c1 #311bb1 #27168e

Complementary Mix

#10316b #1b51b2 #7697d1 #b17d1b #ccab6b #735112

Nearby Colors

#1b51b1
#1b51b3
#1b51a2
#1b51c2

Embed #1B51B2 swatch

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About #1B51B2

#1B51B2 converts to RGB(27, 81, 178) and HSL(219, 74%, 40%). 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).

#1B51B2 FAQs

What is the RGB value of #1B51B2?
RGB: 27, 81, 178. Copy as CSS: rgb(27, 81, 178)
Is #1B51B2 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #1B51B2?
Complement: #b17d1b.
Does #1B51B2 have good contrast on white or black?
On white: 7.33:1 (AAA (normal text)). On black: 2.87:1 (Fails AA).