#151C28

#151C28

Color Values

HEX

#151C28

RGB

21, 28, 40

HSL

217.9, 31.1%, 12.0%

HSV

217.9, 47.5%, 15.7%

CMYK

47.5%, 30.0%, 0.0%, 84.3%

OKLCH

0.2254 0.0257 261.0

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#151C28

#282115

Analogous

#152628

#181528

#151C28

Triadic

#151C28

#28151C

#1C2815

Split Complementary

#151C28

#281815

#262815

Tetradic

#151C28

#281526

#282115

#152818

Color Blindness Simulation

Original

#151C28

Protanopia

#181825

Deuteranopia

#181724

Tritanopia

#152322

Achromatopsia

#1B1B1B

CSS Usage

background-color: #151C28;
color: #151C28;
border-color: #151C28;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F5F7F9
100
#E8ECF2
200
#D0D8E6
300
#AFBDD5
400
#8399BE
500
#5875A7
600
#465E86
700
#384B6B
800
#2C3B54
900
#232D3E
950
#161C27

Contrast Checker

Text on white

17.09:1

AA Pass AAA Pass

Text on black

1.23:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

2월 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

2월 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

2월 20, 2026