#289F63

#289F63

Color Values

HEX

#289F63

RGB

40, 159, 99

HSL

149,7, 59,8%, 39,0%

HSV

149,7, 74,8%, 62,4%

CMYK

74,8%, 0,0%, 37,7%, 37,6%

OKLCH

0,6235 0,1373 156,0

Properties

Cool Light Nearest: NCS S 1050-B90G Emerald

Color Harmonies

Complementary

#289F63

#9F2864

Analogous

#299F28

#289F9E

#289F63

Triadic

#289F63

#63289F

#9F6328

Split Complementary

#289F63

#9E289F

#9F2829

Tetradic

#289F63

#28299F

#9F2864

#9F9E28

Color Blindness Simulation

Original

#289F63

Protanopia

#5C5D72

Deuteranopia

#554C75

Tritanopia

#2E7D80

Achromatopsia

#818181

CSS Usage

background-color: #289F63;
color: #289F63;
border-color: #289F63;
Nearest Tailwind: Emerald 600 #059669

Tailwind Shades

50
#F3FBF7
100
#E4F6ED
200
#C6F1DB
300
#9DE6C1
400
#68D9A0
500
#33CC7F
600
#29A365
700
#218251
800
#1A663F
900
#164B30
950
#0E2F1E

Contrast Checker

Text on white

3,37:1

AA Fail AAA Fail

Text on black

6,23:1

AA Pass 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