#313B51

#313B51

Color Values

HEX

#313B51

RGB

49, 59, 81

HSL

221.2, 24.6%, 25.5%

HSV

221.2, 39.5%, 31.8%

CMYK

39.5%, 27.2%, 0.0%, 68.2%

OKLCH

0.3531 0.0408 265.5

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#313B51

#514731

Analogous

#314B51

#373151

#313B51

Triadic

#313B51

#51313B

#3B5131

Split Complementary

#313B51

#513731

#4B5131

Tetradic

#313B51

#51314B

#514731

#315137

Color Blindness Simulation

Original

#313B51

Protanopia

#35354C

Deuteranopia

#35344A

Tritanopia

#324747

Achromatopsia

#3A3A3A

CSS Usage

background-color: #313B51;
color: #313B51;
border-color: #313B51;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D3D8E4
300
#B3BCD1
400
#8998B8
500
#60749F
600
#4D5D7F
700
#3E4A66
800
#303A4F
900
#262C3B
950
#181C25

Contrast Checker

Text on white

11.2:1

AA Pass AAA Pass

Text on black

1.87:1

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