#3B5B66

#3B5B66

Color Values

HEX

#3B5B66

RGB

59, 91, 102

HSL

195.3, 26.7%, 31.6%

HSV

195.3, 42.2%, 40.0%

CMYK

42.2%, 10.8%, 0.0%, 60.0%

OKLCH

0.4509 0.0415 221.6

Properties

Cool Dark Nearest: RAL 5025 Pearl Gentian Blue

Color Harmonies

Complementary

#3B5B66

#66463B

Analogous

#3B665C

#3B4666

#3B5B66

Triadic

#3B5B66

#663B5B

#5B663B

Split Complementary

#3B5B66

#663B46

#665C3B

Tetradic

#3B5B66

#5C3B66

#66463B

#46663B

Color Blindness Simulation

Original

#3B5B66

Protanopia

#494963

Deuteranopia

#474563

Tritanopia

#3D6161

Achromatopsia

#555555

CSS Usage

background-color: #3B5B66;
color: #3B5B66;
border-color: #3B5B66;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2E0E5
300
#B1CAD2
400
#87ADBA
500
#5D90A2
600
#4B7381
700
#3C5C67
800
#2F4851
900
#25363C
950
#172226

Contrast Checker

Text on white

7.31:1

AA Pass AAA Pass

Text on black

2.87:1

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