#403E56

#403E56

Color Values

HEX

#403E56

RGB

64, 62, 86

HSL

245.0, 16.2%, 29.0%

HSV

245.0, 27.9%, 33.7%

CMYK

25.6%, 27.9%, 0.0%, 66.3%

OKLCH

0.376 0.0408 288.1

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#403E56

#54563E

Analogous

#3E4856

#4C3E56

#403E56

Triadic

#403E56

#56403E

#3E5640

Split Complementary

#403E56

#564C3E

#48563E

Tetradic

#403E56

#563E48

#54563E

#3E564C

Color Blindness Simulation

Original

#403E56

Protanopia

#3F3F50

Deuteranopia

#3F3F4F

Tritanopia

#404C4B

Achromatopsia

#404040

CSS Usage

background-color: #403E56;
color: #403E56;
border-color: #403E56;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F8
100
#EBEBF0
200
#D6D6E1
300
#BAB8CC
400
#9491B0
500
#6E6B94
600
#585577
700
#47445F
800
#37354A
900
#2B2938
950
#1B1A23

Contrast Checker

Text on white

10.29:1

AA Pass AAA Pass

Text on black

2.04:1

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