#28657C

#28657C

Color Values

HEX

#28657C

RGB

40, 101, 124

HSL

196.4, 51.2%, 32.2%

HSV

196.4, 67.7%, 48.6%

CMYK

67.7%, 18.5%, 0.0%, 51.4%

OKLCH

0.4773 0.0721 226.3

Properties

Cool Dark Nearest: RAL 5025 Pearl Gentian Blue

Color Harmonies

Complementary

#28657C

#7C3F28

Analogous

#287C69

#283B7C

#28657C

Triadic

#28657C

#7C2865

#657C28

Split Complementary

#28657C

#7C283B

#7C6928

Tetradic

#28657C

#69287C

#7C3F28

#3B7C28

Color Blindness Simulation

Original

#28657C

Protanopia

#424376

Deuteranopia

#3F3A75

Tritanopia

#2B7271

Achromatopsia

#5A5A5A

CSS Usage

background-color: #28657C;
color: #28657C;
border-color: #28657C;
Nearest Tailwind: Cyan 800 #155E75

Tailwind Shades

50
#F4F9FB
100
#E5F1F5
200
#C9E4EE
300
#A2D0E1
400
#70B7D1
500
#3E9DC1
600
#327E9A
700
#28657B
800
#1F4F60
900
#1A3B47
950
#10252D

Contrast Checker

Text on white

6.48:1

AA Pass AAA Fail

Text on black

3.24:1

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