#231B61

#231B61

Color Values

HEX

#231B61

RGB

35, 27, 97

HSL

246.9, 56.5%, 24.3%

HSV

246.9, 72.2%, 38.0%

CMYK

63.9%, 72.2%, 0.0%, 62.0%

OKLCH

0.2828 0.1181 280.9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#231B61

#59611B

Analogous

#1B3661

#461B61

#231B61

Triadic

#231B61

#61231B

#1B6123

Split Complementary

#231B61

#61461B

#36611B

Tetradic

#231B61

#611B36

#59611B

#1B6146

Color Blindness Simulation

Original

#231B61

Protanopia

#201F50

Deuteranopia

#20214C

Tritanopia

#234340

Achromatopsia

#222222

CSS Usage

background-color: #231B61;
color: #231B61;
border-color: #231B61;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F5F4FB
100
#E7E5F6
200
#CCC7EF
300
#A79FE4
400
#786BD6
500
#4837C8
600
#3A2CA0
700
#2E2380
800
#241C64
900
#1D1849
950
#130F2E

Contrast Checker

Text on white

14.99:1

AA Pass AAA Pass

Text on black

1.4:1

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