#688CB3

#688CB3

Color Values

HEX

#688CB3

RGB

104, 140, 179

HSL

211.2, 33.0%, 55.5%

HSV

211.2, 41.9%, 70.2%

CMYK

41.9%, 21.8%, 0.0%, 29.8%

OKLCH

0.6284 0.0717 251.0

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#688CB3

#B38F68

Analogous

#68B1B3

#6A68B3

#688CB3

Triadic

#688CB3

#B3688C

#8CB368

Split Complementary

#688CB3

#B36A68

#B1B368

Tetradic

#688CB3

#B368B1

#B38F68

#68B36A

Color Blindness Simulation

Original

#688CB3

Protanopia

#7878AA

Deuteranopia

#7673A7

Tritanopia

#6AA2A0

Achromatopsia

#878787

CSS Usage

background-color: #688CB3;
color: #688CB3;
border-color: #688CB3;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F7F9
100
#E8EDF2
200
#D0DBE7
300
#AEC1D6
400
#829FC0
500
#557EAA
600
#446588
700
#37516D
800
#2B3F55
900
#22303F
950
#161E28

Contrast Checker

Text on white

3.51:1

AA Fail AAA Fail

Text on black

5.99:1

AA Pass AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026