#403E58

#403E58

Color Values

HEX

#403E58

RGB

64, 62, 88

HSL

244.6, 17.3%, 29.4%

HSV

244.6, 29.5%, 34.5%

CMYK

27.3%, 29.5%, 0.0%, 65.5%

OKLCH

0.377 0.0441 287.6

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#403E58

#56583E

Analogous

#3E4958

#4D3E58

#403E58

Triadic

#403E58

#58403E

#3E5840

Split Complementary

#403E58

#584D3E

#49583E

Tetradic

#403E58

#583E49

#56583E

#3E584D

Color Blindness Simulation

Original

#403E58

Protanopia

#3F3F52

Deuteranopia

#3F3F50

Tritanopia

#404D4C

Achromatopsia

#404040

CSS Usage

background-color: #403E58;
color: #403E58;
border-color: #403E58;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F8
100
#EBEBF0
200
#D6D5E1
300
#B9B7CC
400
#9390B1
500
#6D6996
600
#575478
700
#464360
800
#36354B
900
#2A2938
950
#1B1A23

Contrast Checker

Text on white

10.25:1

AA Pass AAA Pass

Text on black

2.05:1

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