#21225B

#21225B

Color Values

HEX

#21225B

RGB

33, 34, 91

HSL

239.0, 46.8%, 24.3%

HSV

239.0, 63.7%, 35.7%

CMYK

63.7%, 62.6%, 0.0%, 64.3%

OKLCH

0.2888 0.0999 277.4

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#21225B

#5B5A21

Analogous

#213F5B

#3D215B

#21225B

Triadic

#21225B

#5B2122

#225B21

Split Complementary

#21225B

#5B3D21

#3F5B21

Tetradic

#21225B

#5B213F

#5B5A21

#215B3D

Color Blindness Simulation

Original

#21225B

Protanopia

#21214D

Deuteranopia

#21214A

Tritanopia

#214240

Achromatopsia

#262626

CSS Usage

background-color: #21225B;
color: #21225B;
border-color: #21225B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CBCBEC
300
#A5A6DE
400
#7476CD
500
#4446BB
600
#363896
700
#2B2D78
800
#22235E
900
#1C1D45
950
#12122B

Contrast Checker

Text on white

14.54:1

AA Pass AAA Pass

Text on black

1.44:1

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