#CB1215

#CB1215

Color Values

HEX

#CB1215

RGB

203, 18, 21

HSL

359.0, 83.7%, 43.3%

HSV

359.0, 91.1%, 79.6%

CMYK

0.0%, 91.1%, 89.7%, 20.4%

OKLCH

0.5345 0.2112 28.0

Properties

Warm Dark Nearest: RAL 3020 Traffic Red

Color Harmonies

Complementary

#CB1215

#12CBC8

Analogous

#CB1271

#CB6B12

#CB1215

Triadic

#CB1215

#15CB12

#1215CB

Split Complementary

#CB1215

#12CB6B

#1271CB

Tetradic

#CB1215

#71CB12

#12CBC8

#6B12CB

Color Blindness Simulation

Original

#CB1215

Protanopia

#7B7914

Deuteranopia

#869414

Tritanopia

#C21414

Achromatopsia

#3A3A3A

CSS Usage

background-color: #CB1215;
color: #CB1215;
border-color: #CB1215;
Nearest Tailwind: Red 600 #DC2626

Tailwind Shades

50
#FDF2F2
100
#FAE0E1
200
#F9BDBE
300
#F58F90
400
#F05254
500
#EA1518
600
#BB1113
700
#960D10
800
#750A0C
900
#550C0D
950
#360808

Contrast Checker

Text on white

5.77:1

AA Pass AAA Fail

Text on black

3.64:1

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