#1F3746

#1F3746

Color Values

HEX

#1F3746

RGB

31, 55, 70

HSL

203.1, 38.6%, 19.8%

HSV

203.1, 55.7%, 27.5%

CMYK

55.7%, 21.4%, 0.0%, 72.5%

OKLCH

0.3242 0.0402 237.3

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F3746

#462E1F

Analogous

#1F4641

#1F2346

#1F3746

Triadic

#1F3746

#461F37

#37461F

Split Complementary

#1F3746

#461F23

#46411F

Tetradic

#1F3746

#411F46

#462E1F

#23461F

Color Blindness Simulation

Original

#1F3746

Protanopia

#292A42

Deuteranopia

#282642

Tritanopia

#20403F

Achromatopsia

#333333

CSS Usage

background-color: #1F3746;
color: #1F3746;
border-color: #1F3746;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F5F8FA
100
#E7EEF3
200
#CEDEE9
300
#AAC7D9
400
#7CA9C5
500
#4E8BB1
600
#3F6F8D
700
#325971
800
#274558
900
#203441
950
#142129

Contrast Checker

Text on white

12.4:1

AA Pass AAA Pass

Text on black

1.69:1

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