#15212B

#15212B

Color Values

HEX

#15212B

RGB

21, 33, 43

HSL

207,3, 34,4%, 12,5%

HSV

207,3, 51,2%, 16,9%

CMYK

51,2%, 23,3%, 0,0%, 83,1%

OKLCH

0,2414 0,0256 244,3

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#15212B

#2B1F15

Analogous

#152B2A

#15162B

#15212B

Triadic

#15212B

#2B1521

#212B15

Split Complementary

#15212B

#2B1516

#2B2A15

Tetradic

#15212B

#2A152B

#2B1F15

#162B15

Color Blindness Simulation

Original

#15212B

Protanopia

#1A1A29

Deuteranopia

#1A1928

Tritanopia

#162726

Achromatopsia

#1F1F1F

CSS Usage

background-color: #15212B;
color: #15212B;
border-color: #15212B;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F5F8FA
100
#E8EEF2
200
#CFDCE8
300
#ADC4D7
400
#80A4C1
500
#5483AB
600
#436989
700
#36546E
800
#2A4256
900
#21323F
950
#151F28

Contrast Checker

Text on white

16,35:1

AA Pass AAA Pass

Text on black

1,28:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Şub 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Oca 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Oca 21, 2026