#0B0D2F

#0B0D2F

Color Values

HEX

#0B0D2F

RGB

11, 13, 47

HSL

236.7, 62.1%, 11.4%

HSV

236.7, 76.6%, 18.4%

CMYK

76.6%, 72.3%, 0.0%, 81.6%

OKLCH

0.183 0.0668 275.1

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#0B0D2F

#2F2D0B

Analogous

#0B1F2F

#1B0B2F

#0B0D2F

Triadic

#0B0D2F

#2F0B0D

#0D2F0B

Split Complementary

#0B0D2F

#2F1B0B

#1F2F0B

Tetradic

#0B0D2F

#2F0B1F

#2F2D0B

#0B2F1B

Color Blindness Simulation

Original

#0B0D2F

Protanopia

#0C0C27

Deuteranopia

#0C0C25

Tritanopia

#0B201F

Achromatopsia

#0F0F0F

CSS Usage

background-color: #0B0D2F;
color: #0B0D2F;
border-color: #0B0D2F;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F3F4FB
100
#E4E5F7
200
#C5C8F1
300
#9CA0E8
400
#666DDB
500
#3039CF
600
#272EA5
700
#1F2584
800
#181D67
900
#15184C
950
#0D0F30

Contrast Checker

Text on white

18.87:1

AA Pass AAA Pass

Text on black

1.11:1

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