#280521

#280521

Color Values

HEX

#280521

RGB

40, 5, 33

HSL

312.0, 77.8%, 8.8%

HSV

312.0, 87.5%, 15.7%

CMYK

0.0%, 87.5%, 17.5%, 84.3%

OKLCH

0.1979 0.0714 336.9

Properties

Warm Dark Nearest: RAL 4007 Purple Violet

Color Harmonies

Complementary

#280521

#05280C

Analogous

#1D0528

#28050F

#280521

Triadic

#280521

#212805

#052128

Split Complementary

#280521

#0F2805

#05281D

Tetradic

#280521

#281D05

#05280C

#050F28

Color Blindness Simulation

Original

#280521

Protanopia

#19191A

Deuteranopia

#1B1E19

Tritanopia

#261514

Achromatopsia

#0E0E0E

CSS Usage

background-color: #280521;
color: #280521;
border-color: #280521;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#FCF2FA
100
#F9E1F4
200
#F7C0EC
300
#F192DE
400
#EA57CD
500
#E31CBB
600
#B51796
700
#911278
800
#710E5E
900
#520F45
950
#34092B

Contrast Checker

Text on white

18.52:1

AA Pass AAA Pass

Text on black

1.13:1

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