#21618F

#21618F

Color Values

HEX

#21618F

RGB

33, 97, 143

HSL

205.1, 62.5%, 34.5%

HSV

205.1, 76.9%, 56.1%

CMYK

76.9%, 32.2%, 0.0%, 43.9%

OKLCH

0.4749 0.098 244.1

Properties

Cool Dark Nearest: steelblue 4

Color Harmonies

Complementary

#21618F

#8F4F21

Analogous

#218F86

#212A8F

#21618F

Triadic

#21618F

#8F2161

#618F21

Split Complementary

#21618F

#8F212A

#8F8621

Tetradic

#21618F

#86218F

#8F4F21

#2A8F21

Color Blindness Simulation

Original

#21618F

Protanopia

#3D3D84

Deuteranopia

#393481

Tritanopia

#247B79

Achromatopsia

#575757

CSS Usage

background-color: #21618F;
color: #21618F;
border-color: #21618F;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F3F8FB
100
#E4EFF7
200
#C5DFF2
300
#9CC8E8
400
#66AADC
500
#308DCF
600
#2670A6
700
#1F5A85
800
#184668
900
#15354C
950
#0D2130

Contrast Checker

Text on white

6.62:1

AA Pass AAA Fail

Text on black

3.17:1

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