#677C91

#677C91

Color Values

HEX

#677C91

RGB

103, 124, 145

HSL

210.0, 16.9%, 48.6%

HSV

210.0, 29.0%, 56.9%

CMYK

29.0%, 14.5%, 0.0%, 43.1%

OKLCH

0.5772 0.0408 248.5

Properties

Cool Light Nearest: slategrey

Color Harmonies

Complementary

#677C91

#917C67

Analogous

#679191

#676791

#677C91

Triadic

#677C91

#91677C

#7C9167

Split Complementary

#677C91

#916767

#919167

Tetradic

#677C91

#916791

#917C67

#679167

Color Blindness Simulation

Original

#677C91

Protanopia

#70708C

Deuteranopia

#6F6D8B

Tritanopia

#688887

Achromatopsia

#797979

CSS Usage

background-color: #677C91;
color: #677C91;
border-color: #677C91;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F8
100
#EBEDF0
200
#D5DBE1
300
#B7C2CC
400
#91A1B1
500
#6A8095
600
#556677
700
#44525F
800
#35404B
900
#293038
950
#1A1F23

Contrast Checker

Text on white

4.31:1

AA Fail AAA Fail

Text on black

4.87:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026