#515B80

#515B80

Color Values

HEX

#515B80

RGB

81, 91, 128

HSL

227.2, 22.5%, 41.0%

HSV

227.2, 36.7%, 50.2%

CMYK

36.7%, 28.9%, 0.0%, 49.8%

OKLCH

0.4781 0.0612 272.3

Properties

Cool Dark Nearest: RAL 5007 Brilliant Blue

Color Harmonies

Complementary

#515B80

#807651

Analogous

#517380

#5F5180

#515B80

Triadic

#515B80

#80515B

#5B8051

Split Complementary

#515B80

#805F51

#738051

Tetradic

#515B80

#805173

#807651

#51805F

Color Blindness Simulation

Original

#515B80

Protanopia

#555577

Deuteranopia

#555475

Tritanopia

#52706E

Achromatopsia

#5C5C5C

CSS Usage

background-color: #515B80;
color: #515B80;
border-color: #515B80;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#EAEBF1
200
#D3D7E3
300
#B4BAD0
400
#8B94B6
500
#636F9C
600
#4F597D
700
#3F4764
800
#31384E
900
#272B3A
950
#181B25

Contrast Checker

Text on white

6.65:1

AA Pass AAA Fail

Text on black

3.16:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

1월 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

1월 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

1월 15, 2026