#AA0307

#AA0307

Color Values

HEX

#AA0307

RGB

170, 3, 7

HSL

358.6, 96.5%, 33.9%

HSV

358.6, 98.2%, 66.7%

CMYK

0.0%, 98.2%, 95.9%, 33.3%

OKLCH

0.4647 0.1888 28.5

Properties

Warm Dark Nearest: RAL 2002 Vermilion

Color Harmonies

Complementary

#AA0307

#03AAA6

Analogous

#AA035A

#AA5303

#AA0307

Triadic

#AA0307

#07AA03

#0307AA

Split Complementary

#AA0307

#03AA53

#035AAA

Tetradic

#AA0307

#5AAA03

#03AAA6

#5303AA

Color Blindness Simulation

Original

#AA0307

Protanopia

#626006

Deuteranopia

#6B7806

Tritanopia

#A20505

Achromatopsia

#272727

CSS Usage

background-color: #AA0307;
color: #AA0307;
border-color: #AA0307;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FEF1F1
100
#FCDFDF
200
#FEB9BA
300
#FD8789
400
#FC464A
500
#FB040A
600
#C80408
700
#A00307
800
#7D0205
900
#5B0608
950
#390405

Contrast Checker

Text on white

7.71:1

AA Pass AAA Pass

Text on black

2.73:1

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