#403D50

#403D50

Color Values

HEX

#403D50

RGB

64, 61, 80

HSL

249.5, 13.5%, 27.6%

HSV

249.5, 23.7%, 31.4%

CMYK

20.0%, 23.7%, 0.0%, 68.6%

OKLCH

0.3708 0.0325 292.0

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#403D50

#4D503D

Analogous

#3D4350

#493D50

#403D50

Triadic

#403D50

#50403D

#3D5040

Split Complementary

#403D50

#50493D

#43503D

Tetradic

#403D50

#503D43

#4D503D

#3D5049

Color Blindness Simulation

Original

#403D50

Protanopia

#3F3F4B

Deuteranopia

#3F3F4A

Tritanopia

#404847

Achromatopsia

#3F3F3F

CSS Usage

background-color: #403D50;
color: #403D50;
border-color: #403D50;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F7F6F8
100
#ECEBEF
200
#D8D6E0
300
#BCBACA
400
#9894AD
500
#746E91
600
#5D5874
700
#4A475D
800
#3A3748
900
#2C2B36
950
#1C1B22

Contrast Checker

Text on white

10.49:1

AA Pass AAA Pass

Text on black

2.0:1

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