#28309D

#28309D

Color Values

HEX

#28309D

RGB

40, 48, 157

HSL

235.9, 59.4%, 38.6%

HSV

235.9, 74.5%, 61.6%

CMYK

74.5%, 69.4%, 0.0%, 38.4%

OKLCH

0.3828 0.1733 271.7

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#28309D

#9D9528

Analogous

#286A9D

#5A289D

#28309D

Triadic

#28309D

#9D2830

#309D28

Split Complementary

#28309D

#9D5A28

#6A9D28

Tetradic

#28309D

#9D286A

#9D9528

#289D5A

Color Blindness Simulation

Original

#28309D

Protanopia

#2B2C83

Deuteranopia

#2B2A7C

Tritanopia

#286E69

Achromatopsia

#363636

CSS Usage

background-color: #28309D;
color: #28309D;
border-color: #28309D;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F4FB
100
#E4E5F6
200
#C6C9F1
300
#9DA2E6
400
#6970D9
500
#343ECB
600
#2932A3
700
#212882
800
#1A1F66
900
#171A4A
950
#0E102F

Contrast Checker

Text on white

10.5:1

AA Pass AAA Pass

Text on black

2.0:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026