#281A33

#281A33

Color Values

HEX

#281A33

RGB

40, 26, 51

HSL

273.6, 32.5%, 15.1%

HSV

273.6, 49.0%, 20.0%

CMYK

21.6%, 49.0%, 0.0%, 80.0%

OKLCH

0.2479 0.0495 309.0

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#281A33

#25331A

Analogous

#1B1A33

#331A32

#281A33

Triadic

#281A33

#33281A

#1A3328

Split Complementary

#281A33

#32331A

#1A331B

Tetradic

#281A33

#331B1A

#25331A

#1A3233

Color Blindness Simulation

Original

#281A33

Protanopia

#22222D

Deuteranopia

#23242B

Tritanopia

#272827

Achromatopsia

#1F1F1F

CSS Usage

background-color: #281A33;
color: #281A33;
border-color: #281A33;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F8F5F9
100
#EEE8F2
200
#DDD0E7
300
#C4AED6
400
#A482BF
500
#8456A9
600
#6A4587
700
#55376C
800
#422B54
900
#32223F
950
#201628

Contrast Checker

Text on white

16.33:1

AA Pass AAA Pass

Text on black

1.29:1

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