#28404B

#28404B

Color Values

HEX

#28404B

RGB

40, 64, 75

HSL

198.9, 30.4%, 22.5%

HSV

198.9, 46.7%, 29.4%

CMYK

46.7%, 14.7%, 0.0%, 70.6%

OKLCH

0.3566 0.0353 228.5

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#28404B

#4B3328

Analogous

#284B44

#282E4B

#28404B

Triadic

#28404B

#4B2840

#404B28

Split Complementary

#28404B

#4B282E

#4B4428

Tetradic

#28404B

#44284B

#4B3328

#2E4B28

Color Blindness Simulation

Original

#28404B

Protanopia

#323348

Deuteranopia

#312F48

Tritanopia

#294646

Achromatopsia

#3C3C3C

CSS Usage

background-color: #28404B;
color: #28404B;
border-color: #28404B;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F5F8F9
100
#E9EFF2
200
#D0DFE6
300
#AFC9D4
400
#84ABBD
500
#598EA6
600
#477185
700
#395B6A
800
#2C4753
900
#23353E
950
#162227

Contrast Checker

Text on white

10.91:1

AA Pass AAA Pass

Text on black

1.93:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026