#285D8B

#285D8B

Color Values

HEX

#285D8B

RGB

40, 93, 139

HSL

207.9, 55.3%, 35.1%

HSV

207.9, 71.2%, 54.5%

CMYK

71.2%, 33.1%, 0.0%, 45.5%

OKLCH

0.4651 0.0938 247.7

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#285D8B

#8B5628

Analogous

#288B88

#282B8B

#285D8B

Triadic

#285D8B

#8B285D

#5D8B28

Split Complementary

#285D8B

#8B282B

#8B8828

Tetradic

#285D8B

#88288B

#8B5628

#2B8B28

Color Blindness Simulation

Original

#285D8B

Protanopia

#3F3F80

Deuteranopia

#3C387D

Tritanopia

#2B7775

Achromatopsia

#555555

CSS Usage

background-color: #285D8B;
color: #285D8B;
border-color: #285D8B;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F4F8FB
100
#E5EEF6
200
#C8DDEF
300
#A0C4E4
400
#6CA4D5
500
#3984C6
600
#2E6A9E
700
#24557F
800
#1C4263
900
#183249
950
#0F202E

Contrast Checker

Text on white

6.93:1

AA Pass AAA Fail

Text on black

3.03:1

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