#313858

#313858

Color Values

HEX

#313858

RGB

49, 56, 88

HSL

229.2, 28.5%, 26.9%

HSV

229.2, 44.3%, 34.5%

CMYK

44.3%, 36.4%, 0.0%, 65.5%

OKLCH

0.3496 0.0567 273.7

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#313858

#585131

Analogous

#314C58

#3E3158

#313858

Triadic

#313858

#583138

#385831

Split Complementary

#313858

#583E31

#4C5831

Tetradic

#313858

#58314C

#585131

#31583E

Color Blindness Simulation

Original

#313858

Protanopia

#343450

Deuteranopia

#34334E

Tritanopia

#314A49

Achromatopsia

#393939

CSS Usage

background-color: #313858;
color: #313858;
border-color: #313858;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F6F9
100
#E9EAF1
200
#D1D5E5
300
#B0B7D3
400
#868FBC
500
#5B68A4
600
#495383
700
#3A4369
800
#2E3452
900
#24283D
950
#171A26

Contrast Checker

Text on white

11.43:1

AA Pass AAA Pass

Text on black

1.84:1

AA Fail AAA Fail

Related Articles

Tutorials

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

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026