#21508C

#21508C

Color Values

HEX

#21508C

RGB

33, 80, 140

HSL

213,6, 61,8%, 33,9%

HSV

213,6, 76,4%, 54,9%

CMYK

76,4%, 42,9%, 0,0%, 45,1%

OKLCH

0,4316 0,1118 255,9

Properties

Cool Dark Nearest: dodgerblue 4

Color Harmonies

Complementary

#21508C

#8C5D21

Analogous

#21858C

#27218C

#21508C

Triadic

#21508C

#8C2150

#508C21

Split Complementary

#21508C

#8C2721

#858C21

Tetradic

#21508C

#8C2185

#8C5D21

#218C27

Color Blindness Simulation

Original

#21508C

Protanopia

#35367D

Deuteranopia

#332F7A

Tritanopia

#237270

Achromatopsia

#4A4A4A

CSS Usage

background-color: #21508C;
color: #21508C;
border-color: #21508C;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FB
100
#E4ECF7
200
#C5D9F1
300
#9CBDE8
400
#669ADB
500
#3176CE
600
#275EA5
700
#1F4C84
800
#183B67
900
#162D4B
950
#0E1D30

Contrast Checker

Text on white

8,11:1

AA Pass AAA Pass

Text on black

2,59:1

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