#901015

#901015

Color Values

HEX

#901015

RGB

144, 16, 21

HSL

357.7, 80.0%, 31.4%

HSV

357.7, 88.9%, 56.5%

CMYK

0.0%, 88.9%, 85.4%, 43.5%

OKLCH

0.4185 0.16 26.5

Properties

Warm Dark Nearest: RAL 3003 Ruby Red

Color Harmonies

Complementary

#901015

#10908B

Analogous

#901055

#904B10

#901015

Triadic

#901015

#159010

#101590

Split Complementary

#901015

#10904B

#105590

Tetradic

#901015

#559010

#10908B

#4B1090

Color Blindness Simulation

Original

#901015

Protanopia

#595714

Deuteranopia

#606A14

Tritanopia

#8A1313

Achromatopsia

#2C2C2C

CSS Usage

background-color: #901015;
color: #901015;
border-color: #901015;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FDF2F3
100
#F9E1E2
200
#F8BFC1
300
#F39195
400
#EC555B
500
#E61921
600
#B8141B
700
#931015
800
#730D11
900
#530E10
950
#35090A

Contrast Checker

Text on white

9.25:1

AA Pass AAA Pass

Text on black

2.27:1

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