#28143B

#28143B

Color Values

HEX

#28143B

RGB

40, 20, 59

HSL

270.8, 49.4%, 15.5%

HSV

270.8, 66.1%, 23.1%

CMYK

32.2%, 66.1%, 0.0%, 76.9%

OKLCH

0.2414 0.0738 305.2

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#28143B

#273B14

Analogous

#15143B

#3B143B

#28143B

Triadic

#28143B

#3B2814

#143B28

Split Complementary

#28143B

#3B3B14

#143B15

Tetradic

#28143B

#3B1514

#273B14

#143B3B

Color Blindness Simulation

Original

#28143B

Protanopia

#1F1F32

Deuteranopia

#20222F

Tritanopia

#272A28

Achromatopsia

#1B1B1B

CSS Usage

background-color: #28143B;
color: #28143B;
border-color: #28143B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F4FB
100
#EDE6F5
200
#DCCAED
300
#C3A4E0
400
#A272CF
500
#8141BE
600
#673498
700
#53297A
800
#41205F
900
#311B46
950
#1F112C

Contrast Checker

Text on white

16.75:1

AA Pass AAA Pass

Text on black

1.25:1

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