#A1100C

#A1100C

Color Values

HEX

#A1100C

RGB

161, 16, 12

HSL

1.6, 86.1%, 33.9%

HSV

1.6, 92.5%, 63.1%

CMYK

0.0%, 90.1%, 92.5%, 36.9%

OKLCH

0.4516 0.1763 28.9

Properties

Warm Dark Nearest: RAL 3013 Tomato Red

Color Harmonies

Complementary

#A1100C

#0C9DA1

Analogous

#A10C52

#A15A0C

#A1100C

Triadic

#A1100C

#0CA110

#100CA1

Split Complementary

#A1100C

#0CA15A

#0C52A1

Tetradic

#A1100C

#52A10C

#0C9DA1

#5A0CA1

Color Blindness Simulation

Original

#A1100C

Protanopia

#62610D

Deuteranopia

#6B750D

Tritanopia

#9A0E0E

Achromatopsia

#2F2F2F

CSS Usage

background-color: #A1100C;
color: #A1100C;
border-color: #A1100C;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F2
100
#FAE1E0
200
#FABEBD
300
#F6908D
400
#F2544F
500
#ED1812
600
#BE130E
700
#980F0B
800
#770C09
900
#560D0B
950
#360807

Contrast Checker

Text on white

8.09:1

AA Pass AAA Pass

Text on black

2.59:1

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