#151C2D

#151C2D

Color Values

HEX

#151C2D

RGB

21, 28, 45

HSL

222.5, 36.4%, 12.9%

HSV

222.5, 53.3%, 17.6%

CMYK

53.3%, 37.8%, 0.0%, 82.4%

OKLCH

0.2285 0.0348 266.6

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#151C2D

#2D2615

Analogous

#15282D

#1A152D

#151C2D

Triadic

#151C2D

#2D151C

#1C2D15

Split Complementary

#151C2D

#2D1A15

#282D15

Tetradic

#151C2D

#2D1528

#2D2615

#152D1A

Color Blindness Simulation

Original

#151C2D

Protanopia

#181829

Deuteranopia

#181728

Tritanopia

#152625

Achromatopsia

#1C1C1C

CSS Usage

background-color: #151C2D;
color: #151C2D;
border-color: #151C2D;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F5F6FA
100
#E8EBF3
200
#CED6E8
300
#ACB9D8
400
#7E92C3
500
#516CAE
600
#41578B
700
#34456F
800
#293657
900
#212A40
950
#151A29

Contrast Checker

Text on white

16.99:1

AA Pass AAA Pass

Text on black

1.24:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026