#010143

#010143

Color Values

HEX

#010143

RGB

1, 1, 67

HSL

240.0, 97.1%, 13.3%

HSV

240.0, 98.5%, 26.3%

CMYK

98.5%, 98.5%, 0.0%, 73.7%

OKLCH

0.1762 0.1177 265.3

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#010143

#434301

Analogous

#012243

#220143

#010143

Triadic

#010143

#430101

#014301

Split Complementary

#010143

#432201

#224301

Tetradic

#010143

#430122

#434301

#014322

Color Blindness Simulation

Original

#010143

Protanopia

#010133

Deuteranopia

#01012F

Tritanopia

#012624

Achromatopsia

#060606

CSS Usage

background-color: #010143;
color: #010143;
border-color: #010143;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F1F1FE
100
#DEDEFC
200
#B9B9FE
300
#8686FD
400
#4545FC
500
#0404FB
600
#0303C9
700
#0202A1
800
#02027E
900
#06065B
950
#040439

Contrast Checker

Text on white

19.32:1

AA Pass AAA Pass

Text on black

1.09:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026