#313D3F

#313D3F

Color Values

HEX

#313D3F

RGB

49, 61, 63

HSL

188.6, 12.5%, 22.0%

HSV

188.6, 22.2%, 24.7%

CMYK

22.2%, 3.2%, 0.0%, 75.3%

OKLCH

0.35 0.0162 208.8

Properties

Cool Dark Nearest: RAL 6012 Black Green

Color Harmonies

Complementary

#313D3F

#3F3331

Analogous

#313F3A

#31363F

#313D3F

Triadic

#313D3F

#3F313D

#3D3F31

Split Complementary

#313D3F

#3F3136

#3F3A31

Tetradic

#313D3F

#3A313F

#3F3331

#363F31

Color Blindness Simulation

Original

#313D3F

Protanopia

#36363F

Deuteranopia

#36353E

Tritanopia

#323E3E

Achromatopsia

#3B3B3B

CSS Usage

background-color: #313D3F;
color: #313D3F;
border-color: #313D3F;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

50
#F7F8F8
100
#EBEFEF
200
#D7DEE0
300
#BAC7C9
400
#95A9AC
500
#708B8F
600
#596F73
700
#47595C
800
#384548
900
#2B3436
950
#1B2122

Contrast Checker

Text on white

11.23:1

AA Pass AAA Pass

Text on black

1.87:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026