#A40B10

#A40B10

Color Values

HEX

#A40B10

RGB

164, 11, 16

HSL

358.0, 87.4%, 34.3%

HSV

358.0, 93.3%, 64.3%

CMYK

0.0%, 93.3%, 90.2%, 35.7%

OKLCH

0.4558 0.1806 27.7

Properties

Warm Dark Nearest: RAL 3001 Signal Red

Color Harmonies

Complementary

#A40B10

#0BA49F

Analogous

#A40B5D

#A4520B

#A40B10

Triadic

#A40B10

#10A40B

#0B10A4

Split Complementary

#A40B10

#0BA452

#0B5DA4

Tetradic

#A40B10

#5DA40B

#0BA49F

#520BA4

Color Blindness Simulation

Original

#A40B10

Protanopia

#62600F

Deuteranopia

#6B760E

Tritanopia

#9C0E0E

Achromatopsia

#2C2C2C

CSS Usage

background-color: #A40B10;
color: #A40B10;
border-color: #A40B10;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F2
100
#FAE0E1
200
#FBBCBE
300
#F78C90
400
#F34E54
500
#EF1017
600
#BF0D13
700
#990A0F
800
#77080C
900
#570A0D
950
#370708

Contrast Checker

Text on white

7.97:1

AA Pass AAA Pass

Text on black

2.63:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026