#010239

#010239

Color Values

HEX

#010239

RGB

1, 2, 57

HSL

238,9, 96,6%, 11,4%

HSV

238,9, 98,2%, 22,4%

CMYK

98,2%, 96,5%, 0,0%, 77,6%

OKLCH

0,1621 0,1035 265,7

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#010239

#393801

Analogous

#011E39

#1C0139

#010239

Triadic

#010239

#390102

#023901

Split Complementary

#010239

#391C01

#1E3901

Tetradic

#010239

#39011E

#393801

#01391C

Color Blindness Simulation

Original

#010239

Protanopia

#01012C

Deuteranopia

#010128

Tritanopia

#01211F

Achromatopsia

#060606

CSS Usage

background-color: #010239;
color: #010239;
border-color: #010239;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F1F1FE
100
#DEDFFC
200
#B9BAFE
300
#8789FD
400
#4649FC
500
#0409FB
600
#0307C9
700
#0306A0
800
#02047D
900
#06085B
950
#040539

Contrast Checker

Text on white

19,64:1

AA Pass AAA Pass

Text on black

1,07:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Şub 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Şub 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Şub 19, 2026