#280338

#280338

Color Values

HEX

#280338

RGB

40, 3, 56

HSL

281.9, 89.8%, 11.6%

HSV

281.9, 94.6%, 22.0%

CMYK

28.6%, 94.6%, 0.0%, 78.0%

OKLCH

0.2132 0.0982 312.9

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#280338

#133803

Analogous

#0E0338

#38032E

#280338

Triadic

#280338

#382803

#033828

Split Complementary

#280338

#2E3803

#03380E

Tetradic

#280338

#380E03

#133803

#032E38

Color Blindness Simulation

Original

#280338

Protanopia

#18182B

Deuteranopia

#1A1D28

Tritanopia

#26211F

Achromatopsia

#0F0F0F

CSS Usage

background-color: #280338;
color: #280338;
border-color: #280338;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#FAF2FD
100
#F3E0FB
200
#E8BBFB
300
#D88BF9
400
#C24CF5
500
#AD0DF2
600
#8A0AC2
700
#6F089B
800
#560779
900
#400958
950
#280637

Contrast Checker

Text on white

18.1:1

AA Pass AAA Pass

Text on black

1.16:1

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