#303987

#303987

Color Values

HEX

#303987

RGB

48, 57, 135

HSL

233.8, 47.5%, 35.9%

HSV

233.8, 64.4%, 52.9%

CMYK

64.4%, 57.8%, 0.0%, 47.1%

OKLCH

0.3844 0.1294 273.7

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#303987

#877E30

Analogous

#306587

#533087

#303987

Triadic

#303987

#873039

#398730

Split Complementary

#303987

#875330

#658730

Tetradic

#303987

#873065

#877E30

#308753

Color Blindness Simulation

Original

#303987

Protanopia

#343474

Deuteranopia

#333370

Tritanopia

#306562

Achromatopsia

#3D3D3D

CSS Usage

background-color: #303987;
color: #303987;
border-color: #303987;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACEEC
300
#A5ABDF
400
#747DCD
500
#434FBC
600
#364096
700
#2B3378
800
#21285E
900
#1C2045
950
#12142C

Contrast Checker

Text on white

10.19:1

AA Pass AAA Pass

Text on black

2.06:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026