#284561

#284561

Color Values

HEX

#284561

RGB

40, 69, 97

HSL

209.5, 41.6%, 26.9%

HSV

209.5, 58.8%, 38.0%

CMYK

58.8%, 28.9%, 0.0%, 62.0%

OKLCH

0.3809 0.0596 248.8

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#284561

#614428

Analogous

#286161

#282961

#284561

Triadic

#284561

#612845

#456128

Split Complementary

#284561

#612829

#616128

Tetradic

#284561

#612861

#614428

#296128

Color Blindness Simulation

Original

#284561

Protanopia

#35355A

Deuteranopia

#333159

Tritanopia

#295554

Achromatopsia

#414141

CSS Usage

background-color: #284561;
color: #284561;
border-color: #284561;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F7FA
100
#E7EDF3
200
#CCDCEA
300
#A8C2DB
400
#79A1C8
500
#4A80B5
600
#3C6790
700
#305274
800
#25405A
900
#1E3143
950
#131F2A

Contrast Checker

Text on white

9.93:1

AA Pass AAA Pass

Text on black

2.11:1

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