#303B37

#303B37

Color Values

HEX

#303B37

RGB

48, 59, 55

HSL

158.2, 10.3%, 21.0%

HSV

158.2, 18.6%, 23.1%

CMYK

18.6%, 0.0%, 6.8%, 76.9%

OKLCH

0.3409 0.0162 171.3

Properties

Cool Dark Nearest: RAL 6012 Black Green

Color Harmonies

Complementary

#303B37

#3B3034

Analogous

#303B32

#303A3B

#303B37

Triadic

#303B37

#37303B

#3B3730

Split Complementary

#303B37

#3B303A

#3B3230

Tetradic

#303B37

#32303B

#3B3034

#3A3B30

Color Blindness Simulation

Original

#303B37

Protanopia

#353538

Deuteranopia

#343338

Tritanopia

#313939

Achromatopsia

#383838

CSS Usage

background-color: #303B37;
color: #303B37;
border-color: #303B37;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

50
#F7F8F8
100
#ECEFEE
200
#D8DFDC
300
#BBC8C4
400
#97AAA3
500
#728D83
600
#5B7169
700
#495A54
800
#394642
900
#2C3532
950
#1C211F

Contrast Checker

Text on white

11.63:1

AA Pass AAA Pass

Text on black

1.81:1

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