#A31B1C

Color Details

HEX
#A31B1C
RGB
rgb(163, 27, 28)
HSL
hsl(360, 72%, 37%)
CMYK
cmyk(0%, 83%, 83%, 36%)
Best text on this color #FFFFFF (CR 7.69:1) Determined by WCAG contrast ratio

Readability Previews

Black on #a31b1c
Contrast 2.73:1 Fail
White on #a31b1c
Contrast 7.69:1 AAA
#a31b1c on Black
Contrast 2.73:1 Fail
#a31b1c on White
Contrast 7.69:1 AAA

Tints & Shades

#b54949
#c87677
#daa4a4
#821616
#621011
#410b0b

Complement & Analogous

#1aa2a2
#a25e1a
#a21a5e

Triadic

#1aa21a
#1a1aa2

Monochrome

#410b0b #621011 #a31b1c #c87677 #daa4a4 #edd1d2

Analogous

#a21a5e #be5f8e #a31b1c #b57e48 #a25e1a #824b15

Complementary Mix

#621011 #a31b1c #c87677 #1aa2a2 #6ac3c3 #116969

Nearby Colors

#a31b1b
#a31b1d
#a31b0c
#a31b2c

Embed #A31B1C swatch

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About #A31B1C

#A31B1C converts to RGB(163, 27, 28) and HSL(360, 72%, 37%). 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).

#A31B1C FAQs

What is the RGB value of #A31B1C?
RGB: 163, 27, 28. Copy as CSS: rgb(163, 27, 28)
Is #A31B1C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #A31B1C?
Complement: #1aa2a2.
Does #A31B1C have good contrast on white or black?
On white: 7.69:1 (AAA (normal text)). On black: 2.73:1 (Fails AA).