#515C6D

#515C6D

Color Values

HEX

#515C6D

RGB

81, 92, 109

HSL

216.4, 14.7%, 37.3%

HSV

216.4, 25.7%, 42.7%

CMYK

25.7%, 15.6%, 0.0%, 57.3%

OKLCH

0.4718 0.0309 259.0

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#515C6D

#6D6251

Analogous

#516A6D

#54516D

#515C6D

Triadic

#515C6D

#6D515C

#5C6D51

Split Complementary

#515C6D

#6D5451

#6A6D51

Tetradic

#515C6D

#6D516A

#6D6251

#516D54

Color Blindness Simulation

Original

#515C6D

Protanopia

#565669

Deuteranopia

#555468

Tritanopia

#526665

Achromatopsia

#5B5B5B

CSS Usage

background-color: #515C6D;
color: #515C6D;
border-color: #515C6D;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F7F8
100
#EBEDEF
200
#D6DAE1
300
#B9C0CB
400
#939EAF
500
#6D7C92
600
#576375
700
#464F5E
800
#363E49
900
#2A2F37
950
#1B1E23

Contrast Checker

Text on white

6.77:1

AA Pass AAA Fail

Text on black

3.1:1

AA Fail 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