#405447

#405447

Color Values

HEX

#405447

RGB

64, 84, 71

HSL

141.0, 13.5%, 29.0%

HSV

141.0, 23.8%, 32.9%

CMYK

23.8%, 0.0%, 15.5%, 67.1%

OKLCH

0.4249 0.0328 156.2

Properties

Cool Dark Nearest: RAL 7009 Green Grey

Color Harmonies

Complementary

#405447

#54404D

Analogous

#435440

#405451

#405447

Triadic

#405447

#474054

#544740

Split Complementary

#405447

#514054

#544043

Tetradic

#405447

#404354

#54404D

#545140

Color Blindness Simulation

Original

#405447

Protanopia

#49494A

Deuteranopia

#48464B

Tritanopia

#414D4D

Achromatopsia

#4F4F4F

CSS Usage

background-color: #405447;
color: #405447;
border-color: #405447;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F6F8F7
100
#EBEFED
200
#D6E0DA
300
#BACABF
400
#94AD9D
500
#6E917A
600
#587462
700
#475D4E
800
#37483D
900
#2B362F
950
#1B221D

Contrast Checker

Text on white

8.15:1

AA Pass AAA Pass

Text on black

2.58:1

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