#258B8A

#258B8A

Color Values

HEX

#258B8A

RGB

37, 139, 138

HSL

179.4, 58.0%, 34.5%

HSV

179.4, 73.4%, 54.5%

CMYK

73.4%, 0.0%, 0.7%, 45.5%

OKLCH

0.581 0.0894 194.0

Properties

Cool Light Nearest: darkcyan

Color Harmonies

Complementary

#258B8A

#8B2526

Analogous

#258B57

#25598B

#258B8A

Triadic

#258B8A

#8A258B

#8B8A25

Split Complementary

#258B8A

#8B2559

#8B5725

Tetradic

#258B8A

#57258B

#8B2526

#598B25

Color Blindness Simulation

Original

#258B8A

Protanopia

#51528A

Deuteranopia

#4B448A

Tritanopia

#2A8A8A

Achromatopsia

#757575

CSS Usage

background-color: #258B8A;
color: #258B8A;
border-color: #258B8A;
Nearest Tailwind: Teal 600 #0D9488

Tailwind Shades

50
#F4FBFB
100
#E4F6F6
200
#C7F0F0
300
#9EE5E5
400
#6AD7D6
500
#36C9C8
600
#2BA1A0
700
#228180
800
#1B6564
900
#174A49
950
#0F2F2E

Contrast Checker

Text on white

4.09:1

AA Fail AAA Fail

Text on black

5.14:1

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