#288B64

#288B64

Color Values

HEX

#288B64

RGB

40, 139, 100

HSL

156.4, 55.3%, 35.1%

HSV

156.4, 71.2%, 54.5%

CMYK

71.2%, 0.0%, 28.1%, 45.5%

OKLCH

0.5699 0.109 162.6

Properties

Cool Light Nearest: seagreen

Color Harmonies

Complementary

#288B64

#8B284F

Analogous

#288B33

#28808B

#288B64

Triadic

#288B64

#64288B

#8B6428

Split Complementary

#288B64

#8B2880

#8B3328

Tetradic

#288B64

#33288B

#8B284F

#808B28

Color Blindness Simulation

Original

#288B64

Protanopia

#53546D

Deuteranopia

#4D4670

Tritanopia

#2D7577

Achromatopsia

#737373

CSS Usage

background-color: #288B64;
color: #288B64;
border-color: #288B64;
Nearest Tailwind: Emerald 700 #047857

Tailwind Shades

50
#F4FBF8
100
#E5F6EF
200
#C8EFE0
300
#A0E4C9
400
#6CD5AC
500
#39C68F
600
#2E9E72
700
#247F5B
800
#1C6347
900
#184936
950
#0F2E22

Contrast Checker

Text on white

4.23:1

AA Fail AAA Fail

Text on black

4.97:1

AA Pass AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026