#3D666E

#3D666E

Color Values

HEX

#3D666E

RGB

61, 102, 110

HSL

189.8, 28.7%, 33.5%

HSV

189.8, 44.5%, 43.1%

CMYK

44.5%, 7.3%, 0.0%, 56.9%

OKLCH

0.4833 0.0476 211.4

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#3D666E

#6E453D

Analogous

#3D6E5D

#3D4D6E

#3D666E

Triadic

#3D666E

#6E3D66

#666E3D

Split Complementary

#3D666E

#6E3D4D

#6E5D3D

Tetradic

#3D666E

#5D3D6E

#6E453D

#4D6E3D

Color Blindness Simulation

Original

#3D666E

Protanopia

#4F4F6C

Deuteranopia

#4C496C

Tritanopia

#3F6B6A

Achromatopsia

#5E5E5E

CSS Usage

background-color: #3D666E;
color: #3D666E;
border-color: #3D666E;
Nearest Tailwind: Cyan 800 #155E75

Tailwind Shades

50
#F5F9F9
100
#E9F0F2
200
#D1E2E6
300
#B0CED3
400
#86B3BC
500
#5B98A4
600
#497A83
700
#3A6169
800
#2D4C52
900
#24393D
950
#172427

Contrast Checker

Text on white

6.32:1

AA Pass AAA Fail

Text on black

3.32:1

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