#403752

#403752

Color Values

HEX

#403752

RGB

64, 55, 82

HSL

260,0, 19,7%, 26,9%

HSV

260,0, 32,9%, 32,2%

CMYK

22,0%, 32,9%, 0,0%, 67,8%

OKLCH

0,3579 0,0472 299,3

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#403752

#495237

Analogous

#373C52

#4E3752

#403752

Triadic

#403752

#524037

#375240

Split Complementary

#403752

#524E37

#3C5237

Tetradic

#403752

#52373C

#495237

#37524E

Color Blindness Simulation

Original

#403752

Protanopia

#3C3C4B

Deuteranopia

#3D3D4A

Tritanopia

#404645

Achromatopsia

#3B3B3B

CSS Usage

background-color: #403752;
color: #403752;
border-color: #403752;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D9D4E2
300
#BEB6CE
400
#9A8EB3
500
#776699
600
#5F527A
700
#4C4262
800
#3C334C
900
#2E2839
950
#1D1924

Contrast Checker

Text on white

11,13:1

AA Pass AAA Pass

Text on black

1,89:1

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