#303D52

#303D52

Color Values

HEX

#303D52

RGB

48, 61, 82

HSL

217.1, 26.2%, 25.5%

HSV

217.1, 41.5%, 32.2%

CMYK

41.5%, 25.6%, 0.0%, 67.8%

OKLCH

0.3578 0.0405 259.8

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#303D52

#524530

Analogous

#304E52

#343052

#303D52

Triadic

#303D52

#52303D

#3D5230

Split Complementary

#303D52

#523430

#4E5230

Tetradic

#303D52

#52304E

#524530

#305234

Color Blindness Simulation

Original

#303D52

Protanopia

#36364D

Deuteranopia

#35344C

Tritanopia

#314948

Achromatopsia

#3C3C3C

CSS Usage

background-color: #303D52;
color: #303D52;
border-color: #303D52;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D2D9E5
300
#B2BED2
400
#889BB9
500
#5E78A1
600
#4B6081
700
#3C4D67
800
#2F3C50
900
#252E3C
950
#171D26

Contrast Checker

Text on white

10.97:1

AA Pass AAA Pass

Text on black

1.92:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

1월 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

1월 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

1월 15, 2026