#688E99

#688E99

Color Values

HEX

#688E99

RGB

104, 142, 153

HSL

193.5, 19.4%, 50.4%

HSV

193.5, 32.0%, 60.0%

CMYK

32.0%, 7.2%, 0.0%, 40.0%

OKLCH

0.6225 0.0452 217.6

Properties

Cool Light Nearest: lightblue 4

Color Harmonies

Complementary

#688E99

#997368

Analogous

#68998C

#687599

#688E99

Triadic

#688E99

#99688E

#8E9968

Split Complementary

#688E99

#996875

#998C68

Tetradic

#688E99

#8C6899

#997368

#759968

Color Blindness Simulation

Original

#688E99

Protanopia

#787996

Deuteranopia

#767396

Tritanopia

#6A9494

Achromatopsia

#878787

CSS Usage

background-color: #688E99;
color: #688E99;
border-color: #688E99;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#EAEFF0
200
#D4DFE2
300
#B6C8CE
400
#8EABB3
500
#678D98
600
#52717A
700
#425A61
800
#33474C
900
#283539
950
#192224

Contrast Checker

Text on white

3.55:1

AA Fail AAA Fail

Text on black

5.92:1

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