#1C1B2F

#1C1B2F

Color Values

HEX

#1C1B2F

RGB

28, 27, 47

HSL

243.0, 27.0%, 14.5%

HSV

243.0, 42.6%, 18.4%

CMYK

40.4%, 42.6%, 0.0%, 81.6%

OKLCH

0.2337 0.0381 285.3

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#1C1B2F

#2E2F1B

Analogous

#1B242F

#261B2F

#1C1B2F

Triadic

#1C1B2F

#2F1C1B

#1B2F1C

Split Complementary

#1C1B2F

#2F261B

#242F1B

Tetradic

#1C1B2F

#2F1B24

#2E2F1B

#1B2F26

Color Blindness Simulation

Original

#1C1B2F

Protanopia

#1C1C2A

Deuteranopia

#1C1C29

Tritanopia

#1C2626

Achromatopsia

#1D1D1D

CSS Usage

background-color: #1C1B2F;
color: #1C1B2F;
border-color: #1C1B2F;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F6F9
100
#E9E9F1
200
#D3D2E5
300
#B3B1D2
400
#8A87BA
500
#615DA2
600
#4D4A82
700
#3E3C68
800
#302F51
900
#26253C
950
#181726

Contrast Checker

Text on white

16.84:1

AA Pass AAA Pass

Text on black

1.25:1

AA Fail AAA Fail

Related Articles

Brand Stories

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

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026