#1F0C39

#1F0C39

Color Values

HEX

#1F0C39

RGB

31, 12, 57

HSL

265.3, 65.2%, 13.5%

HSV

265.3, 78.9%, 22.4%

CMYK

45.6%, 78.9%, 0.0%, 77.6%

OKLCH

0.2135 0.0826 298.5

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#1F0C39

#26390C

Analogous

#0C0F39

#350C39

#1F0C39

Triadic

#1F0C39

#391F0C

#0C391F

Split Complementary

#1F0C39

#39350C

#0F390C

Tetradic

#1F0C39

#390C0F

#26390C

#0C3935

Color Blindness Simulation

Original

#1F0C39

Protanopia

#17172E

Deuteranopia

#18192C

Tritanopia

#1E2624

Achromatopsia

#131313

CSS Usage

background-color: #1F0C39;
color: #1F0C39;
border-color: #1F0C39;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F3FC
100
#ECE3F7
200
#D8C4F3
300
#BC9AEA
400
#9763DE
500
#722CD3
600
#5C23A9
700
#491C87
800
#391669
900
#2C144D
950
#1C0D31

Contrast Checker

Text on white

17.95:1

AA Pass AAA Pass

Text on black

1.17:1

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