#63878F

#63878F

Color Values

HEX

#63878F

RGB

99, 135, 143

HSL

190.9, 18.2%, 47.5%

HSV

190.9, 30.8%, 56.1%

CMYK

30.8%, 5.6%, 0.0%, 43.9%

OKLCH

0.5993 0.042 212.9

Properties

Cool Light Nearest: lightblue 4

Color Harmonies

Complementary

#63878F

#8F6B63

Analogous

#638F81

#63718F

#63878F

Triadic

#63878F

#8F6387

#878F63

Split Complementary

#63878F

#8F6371

#8F8163

Tetradic

#63878F

#81638F

#8F6B63

#718F63

Color Blindness Simulation

Original

#63878F

Protanopia

#73738D

Deuteranopia

#706E8D

Tritanopia

#658C8B

Achromatopsia

#808080

CSS Usage

background-color: #63878F;
color: #63878F;
border-color: #63878F;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F6F8F9
100
#EAEFF0
200
#D5DFE2
300
#B7C9CD
400
#8FACB2
500
#688E97
600
#537279
700
#435B60
800
#34474B
900
#293638
950
#1A2224

Contrast Checker

Text on white

3.89:1

AA Fail AAA Fail

Text on black

5.39:1

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