#3B818B

#3B818B

Color Values

HEX

#3B818B

RGB

59, 129, 139

HSL

187.5, 40.4%, 38.8%

HSV

187.5, 57.6%, 54.5%

CMYK

57.6%, 7.2%, 0.0%, 45.5%

OKLCH

0.5625 0.0715 207.8

Properties

Cool Light Nearest: RAL 5018 Turquoise Blue

Color Harmonies

Complementary

#3B818B

#8B453B

Analogous

#3B8B6D

#3B598B

#3B818B

Triadic

#3B818B

#8B3B81

#818B3B

Split Complementary

#3B818B

#8B3B59

#8B6D3B

Tetradic

#3B818B

#6D3B8B

#8B453B

#598B3B

Color Blindness Simulation

Original

#3B818B

Protanopia

#595A89

Deuteranopia

#555088

Tritanopia

#3E8786

Achromatopsia

#737373

CSS Usage

background-color: #3B818B;
color: #3B818B;
border-color: #3B818B;
Nearest Tailwind: Cyan 700 #0E7490

Tailwind Shades

50
#F5F9FA
100
#E7F2F3
200
#CDE6EA
300
#A9D4DB
400
#7BBDC7
500
#4CA6B3
600
#3D858F
700
#316A73
800
#26535A
900
#1F3E42
950
#13272A

Contrast Checker

Text on white

4.47:1

AA Fail AAA Fail

Text on black

4.7:1

AA Pass 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