#28217B

#28217B

Color Values

HEX

#28217B

RGB

40, 33, 123

HSL

244.7, 57.7%, 30.6%

HSV

244.7, 73.2%, 48.2%

CMYK

67.5%, 73.2%, 0.0%, 51.8%

OKLCH

0.3235 0.1455 277.9

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#28217B

#747B21

Analogous

#21477B

#55217B

#28217B

Triadic

#28217B

#7B2821

#217B28

Split Complementary

#28217B

#7B5521

#477B21

Tetradic

#28217B

#7B2147

#747B21

#217B55

Color Blindness Simulation

Original

#28217B

Protanopia

#252565

Deuteranopia

#252660

Tritanopia

#285450

Achromatopsia

#292929

CSS Usage

background-color: #28217B;
color: #28217B;
border-color: #28217B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E6E4F6
200
#CAC7F0
300
#A49EE5
400
#736AD7
500
#4136C9
600
#342BA1
700
#2A2381
800
#211B65
900
#1B174A
950
#110F2E

Contrast Checker

Text on white

13.18:1

AA Pass AAA Pass

Text on black

1.59:1

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