#28288C

#28288C

Color Values

HEX

#28288C

RGB

40, 40, 140

HSL

240.0, 55.6%, 35.3%

HSV

240.0, 71.4%, 54.9%

CMYK

71.4%, 71.4%, 0.0%, 45.1%

OKLCH

0.3523 0.1601 274.4

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#28288C

#8C8C28

Analogous

#285A8C

#5A288C

#28288C

Triadic

#28288C

#8C2828

#288C28

Split Complementary

#28288C

#8C5A28

#5A8C28

Tetradic

#28288C

#8C285A

#8C8C28

#288C5A

Color Blindness Simulation

Original

#28288C

Protanopia

#282874

Deuteranopia

#28286E

Tritanopia

#28615C

Achromatopsia

#2F2F2F

CSS Usage

background-color: #28288C;
color: #28288C;
border-color: #28288C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C7C7EF
300
#A0A0E4
400
#6C6CD5
500
#3939C6
600
#2D2D9F
700
#24247F
800
#1C1C63
900
#181849
950
#0F0F2E

Contrast Checker

Text on white

11.85:1

AA Pass AAA Pass

Text on black

1.77:1

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