#281843

#281843

Color Values

HEX

#281843

RGB

40, 24, 67

HSL

262.3, 47.3%, 17.8%

HSV

262.3, 64.2%, 26.3%

CMYK

40.3%, 64.2%, 0.0%, 73.7%

OKLCH

0.2552 0.0783 297.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#281843

#334318

Analogous

#181D43

#3D1843

#281843

Triadic

#281843

#432818

#184328

Split Complementary

#281843

#433D18

#1D4318

Tetradic

#281843

#43181D

#334318

#18433D

Color Blindness Simulation

Original

#281843

Protanopia

#212139

Deuteranopia

#222336

Tritanopia

#27302F

Achromatopsia

#1F1F1F

CSS Usage

background-color: #281843;
color: #281843;
border-color: #281843;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F4FA
100
#EBE6F4
200
#D7CAEC
300
#BAA5DF
400
#9574CD
500
#7043BC
600
#5A3696
700
#482B78
800
#38225E
900
#2B1C45
950
#1B122C

Contrast Checker

Text on white

16.13:1

AA Pass AAA Pass

Text on black

1.3:1

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