#313F57

#313F57

Color Values

HEX

#313F57

RGB

49, 63, 87

HSL

217,9, 27,9%, 26,7%

HSV

217,9, 43,7%, 34,1%

CMYK

43,7%, 27,6%, 0,0%, 65,9%

OKLCH

0,3662 0,0456 261,0

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#313F57

#574931

Analogous

#315257

#363157

#313F57

Triadic

#313F57

#57313F

#3F5731

Split Complementary

#313F57

#573631

#525731

Tetradic

#313F57

#573152

#574931

#315736

Color Blindness Simulation

Original

#313F57

Protanopia

#373751

Deuteranopia

#363550

Tritanopia

#324D4C

Achromatopsia

#3E3E3E

CSS Usage

background-color: #313F57;
color: #313F57;
border-color: #313F57;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D1D9E5
300
#B1BDD3
400
#869ABB
500
#5C76A3
600
#4A5F82
700
#3B4C68
800
#2E3B52
900
#242D3D
950
#171D26

Contrast Checker

Text on white

10,61:1

AA Pass AAA Pass

Text on black

1,98:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Oca 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Oca 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Oca 15, 2026