#281D35

#281D35

Color Values

HEX

#281D35

RGB

40, 29, 53

HSL

267.5, 29.3%, 16.1%

HSV

267.5, 45.3%, 20.8%

CMYK

24.5%, 45.3%, 0.0%, 79.2%

OKLCH

0.2558 0.0463 304.4

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#281D35

#2A351D

Analogous

#1D1E35

#341D35

#281D35

Triadic

#281D35

#35281D

#1D3528

Split Complementary

#281D35

#35341D

#1E351D

Tetradic

#281D35

#351D1E

#2A351D

#1D3534

Color Blindness Simulation

Original

#281D35

Protanopia

#23232F

Deuteranopia

#24252E

Tritanopia

#272B2A

Achromatopsia

#212121

CSS Usage

background-color: #281D35;
color: #281D35;
border-color: #281D35;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F7F5F9
100
#EDE9F2
200
#DAD1E6
300
#C0B0D4
400
#9E85BC
500
#7C5AA5
600
#644884
700
#503A6A
800
#3E2D52
900
#2F243D
950
#1E1727

Contrast Checker

Text on white

15.94:1

AA Pass AAA Pass

Text on black

1.32:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026