#2D288C

#2D288C

Color Values

HEX

#2D288C

RGB

45, 40, 140

HSL

243.0, 55.6%, 35.3%

HSV

243.0, 71.4%, 54.9%

CMYK

67.9%, 71.4%, 0.0%, 45.1%

OKLCH

0.3558 0.1588 276.8

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#2D288C

#878C28

Analogous

#28558C

#5F288C

#2D288C

Triadic

#2D288C

#8C2D28

#288C2D

Split Complementary

#2D288C

#8C5F28

#558C28

Tetradic

#2D288C

#8C2855

#878C28

#288C5F

Color Blindness Simulation

Original

#2D288C

Protanopia

#2B2B74

Deuteranopia

#2B2C6E

Tritanopia

#2D615C

Achromatopsia

#303030

CSS Usage

background-color: #2D288C;
color: #2D288C;
border-color: #2D288C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E6E5F6
200
#C9C7EF
300
#A3A0E4
400
#716CD5
500
#4039C6
600
#332D9F
700
#29247F
800
#201C63
900
#1B1849
950
#110F2E

Contrast Checker

Text on white

11.71:1

AA Pass AAA Pass

Text on black

1.79:1

AA Fail AAA Fail

Related Articles

Tutorials

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

1월 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

1월 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

1월 15, 2026