#231B2C

#231B2C

Color Values

HEX

#231B2C

RGB

35, 27, 44

HSL

268.2, 23.9%, 13.9%

HSV

268.2, 38.6%, 17.3%

CMYK

20.5%, 38.6%, 0.0%, 82.7%

OKLCH

0.2398 0.0337 305.5

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#231B2C

#242C1B

Analogous

#1B1B2C

#2B1B2C

#231B2C

Triadic

#231B2C

#2C231B

#1B2C23

Split Complementary

#231B2C

#2C2B1B

#1B2C1B

Tetradic

#231B2C

#2C1B1B

#242C1B

#1B2C2B

Color Blindness Simulation

Original

#231B2C

Protanopia

#201F28

Deuteranopia

#202127

Tritanopia

#232524

Achromatopsia

#1E1E1E

CSS Usage

background-color: #231B2C;
color: #231B2C;
border-color: #231B2C;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F7F6F9
100
#EDEAF1
200
#DBD3E4
300
#C1B3D0
400
#9F8AB7
500
#7E619E
600
#654E7E
700
#503E65
800
#3F314F
900
#30263B
950
#1E1825

Contrast Checker

Text on white

16.61:1

AA Pass AAA Pass

Text on black

1.26:1

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