#0B021D

#0B021D

Color Values

HEX

#0B021D

RGB

11, 2, 29

HSL

260.0, 87.1%, 6.1%

HSV

260.0, 93.1%, 11.4%

CMYK

62.1%, 93.1%, 0.0%, 88.6%

OKLCH

0.134 0.0603 295.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#0B021D

#141D02

Analogous

#02071D

#19021D

#0B021D

Triadic

#0B021D

#1D0B02

#021D0B

Split Complementary

#0B021D

#1D1902

#071D02

Tetradic

#0B021D

#1D0207

#141D02

#021D19

Color Blindness Simulation

Original

#0B021D

Protanopia

#070716

Deuteranopia

#080815

Tritanopia

#0B1110

Achromatopsia

#060606

CSS Usage

background-color: #0B021D;
color: #0B021D;
border-color: #0B021D;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#F5F2FD
100
#E9E0FA
200
#D1BCFA
300
#B08CF7
400
#854EF3
500
#5A10EF
600
#480DBF
700
#3A0B99
800
#2D0877
900
#240A56
950
#170737

Contrast Checker

Text on white

20.18:1

AA Pass AAA Pass

Text on black

1.04:1

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