#1B231B

#1B231B

Color Values

HEX

#1B231B

RGB

27, 35, 27

HSL

120.0, 12.9%, 12.2%

HSV

120.0, 22.9%, 13.7%

CMYK

22.9%, 0.0%, 22.9%, 86.3%

OKLCH

0.2454 0.0189 145.0

Properties

Cool Dark Nearest: RAL 6022 Olive Drab

Color Harmonies

Complementary

#1B231B

#231B23

Analogous

#1F231B

#1B231F

#1B231B

Triadic

#1B231B

#1B1B23

#231B1B

Split Complementary

#1B231B

#1F1B23

#231B1F

Tetradic

#1B231B

#1B1F23

#231B23

#231F1B

Color Blindness Simulation

Original

#1B231B

Protanopia

#1E1F1D

Deuteranopia

#1E1D1D

Tritanopia

#1B1E1F

Achromatopsia

#212121

CSS Usage

background-color: #1B231B;
color: #1B231B;
border-color: #1B231B;
Nearest Tailwind: Neutral 800 #262626

Tailwind Shades

50
#F7F8F7
100
#EBEFEB
200
#D7E0D7
300
#BACABA
400
#94AD94
500
#6F906F
600
#597359
700
#475C47
800
#384838
900
#2B362B
950
#1B221B

Contrast Checker

Text on white

16.12:1

AA Pass AAA Pass

Text on black

1.3:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026