#285159

#285159

Color Values

HEX

#285159

RGB

40, 81, 89

HSL

189,8, 38,0%, 25,3%

HSV

189,8, 55,1%, 34,9%

CMYK

55,1%, 9,0%, 0,0%, 65,1%

OKLCH

0,4086 0,0478 211,8

Properties

Cool Dark Nearest: darkslategrey

Color Harmonies

Complementary

#285159

#593028

Analogous

#285949

#283959

#285159

Triadic

#285159

#592851

#515928

Split Complementary

#285159

#592839

#594928

Tetradic

#285159

#492859

#593028

#395928

Color Blindness Simulation

Original

#285159

Protanopia

#3A3A57

Deuteranopia

#373457

Tritanopia

#2A5655

Achromatopsia

#494949

CSS Usage

background-color: #285159;
color: #285159;
border-color: #285159;
Nearest Tailwind: Cyan 900 #164E63

Tailwind Shades

50
#F5F9FA
100
#E7F1F3
200
#CEE4E9
300
#ABD1D9
400
#7DB9C5
500
#4FA0B0
600
#3F808D
700
#336671
800
#285058
900
#203C41
950
#142629

Contrast Checker

Text on white

8,71:1

AA Pass AAA Pass

Text on black

2,41:1

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