#0C0F28

#0C0F28

Color Values

HEX

#0C0F28

RGB

12, 15, 40

HSL

233.6, 53.8%, 10.2%

HSV

233.6, 70.0%, 15.7%

CMYK

70.0%, 62.5%, 0.0%, 84.3%

OKLCH

0.182 0.0507 275.0

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#0C0F28

#28250C

Analogous

#0C1D28

#170C28

#0C0F28

Triadic

#0C0F28

#280C0F

#0F280C

Split Complementary

#0C0F28

#28170C

#1D280C

Tetradic

#0C0F28

#280C1D

#28250C

#0C2817

Color Blindness Simulation

Original

#0C0F28

Protanopia

#0D0D22

Deuteranopia

#0D0D20

Tritanopia

#0C1D1C

Achromatopsia

#101010

CSS Usage

background-color: #0C0F28;
color: #0C0F28;
border-color: #0C0F28;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F4F5FB
100
#E5E7F5
200
#C8CCEF
300
#A1A8E3
400
#6E79D3
500
#3B4AC4
600
#2F3B9D
700
#262F7E
800
#1D2562
900
#191E48
950
#10132D

Contrast Checker

Text on white

18.84:1

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