#1F666B

#1F666B

Color Values

HEX

#1F666B

RGB

31, 102, 107

HSL

183.9, 55.1%, 27.1%

HSV

183.9, 71.0%, 42.0%

CMYK

71.0%, 4.7%, 0.0%, 58.0%

OKLCH

0.4695 0.0686 201.9

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#1F666B

#6B241F

Analogous

#1F6B4A

#1F406B

#1F666B

Triadic

#1F666B

#6B1F66

#666B1F

Split Complementary

#1F666B

#6B1F40

#6B4A1F

Tetradic

#1F666B

#4A1F6B

#6B241F

#406B1F

Color Blindness Simulation

Original

#1F666B

Protanopia

#3E3E6A

Deuteranopia

#3A3469

Tritanopia

#236969

Achromatopsia

#575757

CSS Usage

background-color: #1F666B;
color: #1F666B;
border-color: #1F666B;
Nearest Tailwind: Teal 800 #115E59

Tailwind Shades

50
#F4FAFB
100
#E5F4F6
200
#C8ECEF
300
#A0DFE4
400
#6DCED5
500
#39BDC6
600
#2E979E
700
#25797F
800
#1D5E63
900
#184548
950
#0F2C2E

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

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026