#2F51A5

Color Details

HEX
#2F51A5
RGB
rgb(47, 81, 165)
HSL
hsl(223, 56%, 42%)
CMYK
cmyk(72%, 51%, 0%, 35%)
Best text on this color #FFFFFF (CR 7.39:1) Determined by WCAG contrast ratio

Readability Previews

Black on #2f51a5
Contrast 2.84:1 Fail
White on #2f51a5
Contrast 7.39:1 AAA
#2f51a5 on Black
Contrast 2.84:1 Fail
#2f51a5 on White
Contrast 7.39:1 AAA

Tints & Shades

#5974b7
#8297c9
#acb9db
#264184
#1c3163
#132042

Complement & Analogous

#a7852f
#492fa7
#2f8da7

Triadic

#a72f51
#51a72f

Monochrome

#132042 #1c3163 #2f51a5 #8297c9 #acb9db #d5dced

Analogous

#2f8da7 #6dafc1 #2f51a5 #6d59b9 #492fa7 #3a2686

Complementary Mix

#1c3163 #2f51a5 #8297c9 #a7852f #c6b078 #6d561f

Nearby Colors

#2f51a4
#2f51a6
#2f5195
#2f51b5

Embed #2F51A5 swatch

Embed this swatch

Use this HTML on your site (free with a link):

Open image

About #2F51A5

#2F51A5 converts to RGB(47, 81, 165) and HSL(223, 56%, 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).

#2F51A5 FAQs

What is the RGB value of #2F51A5?
RGB: 47, 81, 165. Copy as CSS: rgb(47, 81, 165)
Is #2F51A5 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #2F51A5?
Complement: #a7852f.
Does #2F51A5 have good contrast on white or black?
On white: 7.39:1 (AAA (normal text)). On black: 2.84:1 (Fails AA).