#283D44

#283D44

Color Values

HEX

#283D44

RGB

40, 61, 68

HSL

195.0, 25.9%, 21.2%

HSV

195.0, 41.2%, 26.7%

CMYK

41.2%, 10.3%, 0.0%, 73.3%

OKLCH

0.3453 0.0292 220.7

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#283D44

#442F28

Analogous

#28443D

#282F44

#283D44

Triadic

#283D44

#44283D

#3D4428

Split Complementary

#283D44

#44282F

#443D28

Tetradic

#283D44

#3D2844

#442F28

#2F4428

Color Blindness Simulation

Original

#283D44

Protanopia

#313142

Deuteranopia

#302E42

Tritanopia

#294141

Achromatopsia

#393939

CSS Usage

background-color: #283D44;
color: #283D44;
border-color: #283D44;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2E0E5
300
#B2CAD2
400
#88ADB9
500
#5E90A1
600
#4C7380
700
#3C5C67
800
#2F4850
900
#25363C
950
#172226

Contrast Checker

Text on white

11.41:1

AA Pass AAA Pass

Text on black

1.84:1

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