#280C47

#280C47

Color Values

HEX

#280C47

RGB

40, 12, 71

HSL

268,5, 71,1%, 16,3%

HSV

268,5, 83,1%, 27,8%

CMYK

43,7%, 83,1%, 0,0%, 72,2%

OKLCH

0,2395 0,1025 300,2

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#280C47

#2B470C

Analogous

#0C0D47

#460C47

#280C47

Triadic

#280C47

#47280C

#0C4728

Split Complementary

#280C47

#47460C

#0D470C

Tetradic

#280C47

#470C0D

#2B470C

#0C4746

Color Blindness Simulation

Original

#280C47

Protanopia

#1C1C39

Deuteranopia

#1E2035

Tritanopia

#272D2B

Achromatopsia

#161616

CSS Usage

background-color: #280C47;
color: #280C47;
border-color: #280C47;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F3FC
100
#EDE2F8
200
#DAC2F5
300
#C096ED
400
#9D5EE4
500
#7B25DA
600
#621DAF
700
#4F188C
800
#3D126D
900
#2F114F
950
#1E0B32

Contrast Checker

Text on white

17,02:1

AA Pass AAA Pass

Text on black

1,23:1

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