#631212

#631212

Color Values

HEX

#631212

RGB

99, 18, 18

HSL

0.0, 69.2%, 22.9%

HSV

0.0, 81.8%, 38.8%

CMYK

0.0%, 81.8%, 81.8%, 61.2%

OKLCH

0.3289 0.114 26.2

Properties

Warm Dark Nearest: RAL 3004 Purple Red

Color Harmonies

Complementary

#631212

#126363

Analogous

#63123A

#633A12

#631212

Triadic

#631212

#126312

#121263

Split Complementary

#631212

#12633A

#123A63

Tetradic

#631212

#3A6312

#126363

#3A1263

Color Blindness Simulation

Original

#631212

Protanopia

#403F12

Deuteranopia

#454B12

Tritanopia

#5F1212

Achromatopsia

#232323

CSS Usage

background-color: #631212;
color: #631212;
border-color: #631212;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FCF3F3
100
#F8E3E3
200
#F4C3C3
300
#EC9797
400
#E25F5F
500
#D82727
600
#AD1F1F
700
#8A1919
800
#6C1414
900
#4F1212
950
#320C0C

Contrast Checker

Text on white

12.92:1

AA Pass AAA Pass

Text on black

1.63:1

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