#18253B

#18253B

Color Values

HEX

#18253B

RGB

24, 37, 59

HSL

217.7, 42.2%, 16.3%

HSV

217.7, 59.3%, 23.1%

CMYK

59.3%, 37.3%, 0.0%, 76.9%

OKLCH

0.2643 0.0453 260.5

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#18253B

#3B2E18

Analogous

#18373B

#1D183B

#18253B

Triadic

#18253B

#3B1825

#253B18

Split Complementary

#18253B

#3B1D18

#373B18

Tetradic

#18253B

#3B1837

#3B2E18

#183B1D

Color Blindness Simulation

Original

#18253B

Protanopia

#1E1E36

Deuteranopia

#1D1C34

Tritanopia

#193131

Achromatopsia

#242424

CSS Usage

background-color: #18253B;
color: #18253B;
border-color: #18253B;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F7FA
100
#E7ECF4
200
#CCD7EA
300
#A8BBDC
400
#7996C8
500
#4A72B5
600
#3B5B91
700
#2F4974
800
#25395B
900
#1E2C43
950
#131C2A

Contrast Checker

Text on white

15.37:1

AA Pass AAA Pass

Text on black

1.37:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026