#403953

#403953

Color Values

HEX

#403953

RGB

64, 57, 83

HSL

256.2, 18.6%, 27.5%

HSV

256.2, 31.3%, 32.5%

CMYK

22.9%, 31.3%, 0.0%, 67.5%

OKLCH

0.363 0.045 296.5

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#403953

#4C5339

Analogous

#393F53

#4D3953

#403953

Triadic

#403953

#534039

#395340

Split Complementary

#403953

#534D39

#3F5339

Tetradic

#403953

#53393F

#4C5339

#39534D

Color Blindness Simulation

Original

#403953

Protanopia

#3D3D4D

Deuteranopia

#3D3E4B

Tritanopia

#404847

Achromatopsia

#3C3C3C

CSS Usage

background-color: #403953;
color: #403953;
border-color: #403953;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D8D5E2
300
#BDB6CD
400
#998FB2
500
#756897
600
#5D5379
700
#4B4261
800
#3A344C
900
#2D2839
950
#1C1924

Contrast Checker

Text on white

10.89:1

AA Pass AAA Pass

Text on black

1.93:1

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