#312D3B

#312D3B

Color Values

HEX

#312D3B

RGB

49, 45, 59

HSL

257.1, 13.5%, 20.4%

HSV

257.1, 23.7%, 23.1%

CMYK

16.9%, 23.7%, 0.0%, 76.9%

OKLCH

0.3073 0.0254 298.0

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#312D3B

#373B2D

Analogous

#2D303B

#382D3B

#312D3B

Triadic

#312D3B

#3B312D

#2D3B31

Split Complementary

#312D3B

#3B382D

#303B2D

Tetradic

#312D3B

#3B2D30

#373B2D

#2D3B38

Color Blindness Simulation

Original

#312D3B

Protanopia

#2F2F38

Deuteranopia

#303037

Tritanopia

#313534

Achromatopsia

#2F2F2F

CSS Usage

background-color: #312D3B;
color: #312D3B;
border-color: #312D3B;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F7F6F8
100
#ECEBEF
200
#D9D6E0
300
#BEBACA
400
#9B94AD
500
#786E91
600
#605874
700
#4D475D
800
#3C3748
900
#2E2B36
950
#1D1B22

Contrast Checker

Text on white

13.38:1

AA Pass AAA Pass

Text on black

1.57:1

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