#21277B

#21277B

Color Values

HEX

#21277B

RGB

33, 39, 123

HSL

236.0, 57.7%, 30.6%

HSV

236.0, 73.2%, 48.2%

CMYK

73.2%, 68.3%, 0.0%, 51.8%

OKLCH

0.3289 0.1401 272.7

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#21277B

#7B7521

Analogous

#21547B

#48217B

#21277B

Triadic

#21277B

#7B2127

#277B21

Split Complementary

#21277B

#7B4821

#547B21

Tetradic

#21277B

#7B2154

#7B7521

#217B48

Color Blindness Simulation

Original

#21277B

Protanopia

#242467

Deuteranopia

#232362

Tritanopia

#215753

Achromatopsia

#2C2C2C

CSS Usage

background-color: #21277B;
color: #21277B;
border-color: #21277B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E4E6F6
200
#C7C9F0
300
#9EA3E5
400
#6A71D7
500
#3640C9
600
#2B33A1
700
#232981
800
#1B2065
900
#171B4A
950
#0F112E

Contrast Checker

Text on white

12.8:1

AA Pass AAA Pass

Text on black

1.64:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026