#28557B

#28557B

Color Values

HEX

#28557B

RGB

40, 85, 123

HSL

207.5, 50.9%, 32.0%

HSV

207.5, 67.5%, 48.2%

CMYK

67.5%, 30.9%, 0.0%, 51.8%

OKLCH

0.436 0.0803 246.5

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#28557B

#7B4E28

Analogous

#287B78

#282C7B

#28557B

Triadic

#28557B

#7B2855

#557B28

Split Complementary

#28557B

#7B282C

#7B7828

Tetradic

#28557B

#78287B

#7B4E28

#2C7B28

Color Blindness Simulation

Original

#28557B

Protanopia

#3B3C72

Deuteranopia

#393670

Tritanopia

#2A6B69

Achromatopsia

#4E4E4E

CSS Usage

background-color: #28557B;
color: #28557B;
border-color: #28557B;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F4F8FB
100
#E5EEF5
200
#C9DDED
300
#A3C4E1
400
#71A5D1
500
#3F85C0
600
#326A9A
700
#28557B
800
#1F4260
900
#1A3247
950
#11202D

Contrast Checker

Text on white

7.85:1

AA Pass AAA Pass

Text on black

2.68:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026