#18258C

#18258C

Color Values

HEX

#18258C

RGB

24, 37, 140

HSL

233.3, 70.7%, 32.2%

HSV

233.3, 82.9%, 54.9%

CMYK

82.9%, 73.6%, 0.0%, 45.1%

OKLCH

0.3384 0.1677 268.7

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#18258C

#8C7F18

Analogous

#185F8C

#45188C

#18258C

Triadic

#18258C

#8C1825

#258C18

Split Complementary

#18258C

#8C4518

#5F8C18

Tetradic

#18258C

#8C185F

#8C7F18

#188C45

Color Blindness Simulation

Original

#18258C

Protanopia

#1E1E73

Deuteranopia

#1D1C6D

Tritanopia

#195F5B

Achromatopsia

#2A2A2A

CSS Usage

background-color: #18258C;
color: #18258C;
border-color: #18258C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F4FC
100
#E2E5F8
200
#C2C8F5
300
#97A0ED
400
#5E6DE3
500
#2539DA
600
#1E2EAE
700
#18258B
800
#131D6D
900
#12194F
950
#0B0F32

Contrast Checker

Text on white

12.48:1

AA Pass AAA Pass

Text on black

1.68:1

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