#A30003

#A30003

Color Values

HEX

#A30003

RGB

163, 0, 3

HSL

358.9, 100.0%, 32.0%

HSV

358.9, 100.0%, 63.9%

CMYK

0.0%, 100.0%, 98.2%, 36.1%

OKLCH

0.4494 0.1842 28.8

Properties

Warm Dark Nearest: RAL 3013 Tomato Red

Color Harmonies

Complementary

#A30003

#00A3A0

Analogous

#A30055

#A34F00

#A30003

Triadic

#A30003

#03A300

#0003A3

Split Complementary

#A30003

#00A34F

#0055A3

Tetradic

#A30003

#55A300

#00A3A0

#4F00A3

Color Blindness Simulation

Original

#A30003

Protanopia

#5C5B02

Deuteranopia

#667202

Tritanopia

#9B0202

Achromatopsia

#232323

CSS Usage

background-color: #A30003;
color: #A30003;
border-color: #A30003;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FEF1F1
100
#FCDEDF
200
#FFB8B9
300
#FF8587
400
#FF4246
500
#FF0005
600
#CC0004
700
#A30003
800
#800002
900
#5C0506
950
#3A0304

Contrast Checker

Text on white

8.21:1

AA Pass AAA Pass

Text on black

2.56:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026