#284F55

#284F55

Color Values

HEX

#284F55

RGB

40, 79, 85

HSL

188.0, 36.0%, 24.5%

HSV

188.0, 52.9%, 33.3%

CMYK

52.9%, 7.1%, 0.0%, 66.7%

OKLCH

0.4015 0.0453 208.4

Properties

Cool Dark Nearest: darkslategrey

Color Harmonies

Complementary

#284F55

#552E28

Analogous

#285544

#283855

#284F55

Triadic

#284F55

#55284F

#4F5528

Split Complementary

#284F55

#552838

#554428

Tetradic

#284F55

#442855

#552E28

#385528

Color Blindness Simulation

Original

#284F55

Protanopia

#393954

Deuteranopia

#373453

Tritanopia

#2A5252

Achromatopsia

#474747

CSS Usage

background-color: #284F55;
color: #284F55;
border-color: #284F55;
Nearest Tailwind: Teal 900 #134E4A

Tailwind Shades

50
#F5F9FA
100
#E8F1F3
200
#CEE5E8
300
#ACD2D8
400
#7FBAC3
500
#52A1AD
600
#41818B
700
#34676F
800
#295157
900
#213C40
950
#152629

Contrast Checker

Text on white

8.98:1

AA Pass AAA Pass

Text on black

2.34:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026