#282838

#282838

Color Values

HEX

#282838

RGB

40, 40, 56

HSL

240.0, 16.7%, 18.8%

HSV

240.0, 28.6%, 22.0%

CMYK

28.6%, 28.6%, 0.0%, 78.0%

OKLCH

0.2841 0.0292 284.4

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#282838

#383828

Analogous

#283038

#302838

#282838

Triadic

#282838

#382828

#283828

Split Complementary

#282838

#383028

#303828

Tetradic

#282838

#382830

#383828

#283830

Color Blindness Simulation

Original

#282838

Protanopia

#282834

Deuteranopia

#282833

Tritanopia

#283130

Achromatopsia

#292929

CSS Usage

background-color: #282838;
color: #282838;
border-color: #282838;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F6F6F8
100
#EBEBF0
200
#D5D5E1
300
#B8B8CC
400
#9191B0
500
#6A6A95
600
#555577
700
#44445F
800
#35354A
900
#292938
950
#1A1A23

Contrast Checker

Text on white

14.47:1

AA Pass AAA Pass

Text on black

1.45:1

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