#1F3141

#1F3141

Color Values

HEX

#1F3141

RGB

31, 49, 65

HSL

208.2, 35.4%, 18.8%

HSV

208.2, 52.3%, 25.5%

CMYK

52.3%, 24.6%, 0.0%, 74.5%

OKLCH

0.3052 0.0375 246.2

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F3141

#412F1F

Analogous

#1F4140

#1F2041

#1F3141

Triadic

#1F3141

#411F31

#31411F

Split Complementary

#1F3141

#411F20

#41401F

Tetradic

#1F3141

#401F41

#412F1F

#20411F

Color Blindness Simulation

Original

#1F3141

Protanopia

#27273D

Deuteranopia

#26243C

Tritanopia

#203A39

Achromatopsia

#2E2E2E

CSS Usage

background-color: #1F3141;
color: #1F3141;
border-color: #1F3141;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F5F7FA
100
#E8EDF3
200
#CFDCE8
300
#ACC3D7
400
#7FA3C2
500
#5282AD
600
#42688A
700
#35536E
800
#294156
900
#213140
950
#151F28

Contrast Checker

Text on white

13.34:1

AA Pass AAA Pass

Text on black

1.57:1

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