#312940

#312940

Color Values

HEX

#312940

RGB

49, 41, 64

HSL

260.9, 21.9%, 20.6%

HSV

260.9, 35.9%, 25.1%

CMYK

23.4%, 35.9%, 0.0%, 74.9%

OKLCH

0.3003 0.0421 299.8

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#312940

#384029

Analogous

#292D40

#3D2940

#312940

Triadic

#312940

#403129

#294031

Split Complementary

#312940

#403D29

#2D4029

Tetradic

#312940

#40292D

#384029

#29403D

Color Blindness Simulation

Original

#312940

Protanopia

#2E2D3A

Deuteranopia

#2E2F39

Tritanopia

#313635

Achromatopsia

#2C2C2C

CSS Usage

background-color: #312940;
color: #312940;
border-color: #312940;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D9D3E3
300
#BEB4CF
400
#9A8CB5
500
#77649B
600
#5F507C
700
#4C4063
800
#3C324E
900
#2E273A
950
#1D1925

Contrast Checker

Text on white

13.8:1

AA Pass AAA Pass

Text on black

1.52:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026