#18275D

#18275D

Color Values

HEX

#18275D

RGB

24, 39, 93

HSL

227.0, 59.0%, 22.9%

HSV

227.0, 74.2%, 36.5%

CMYK

74.2%, 58.1%, 0.0%, 63.5%

OKLCH

0.2952 0.0985 268.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#18275D

#5D4E18

Analogous

#18495D

#2B185D

#18275D

Triadic

#18275D

#5D1827

#275D18

Split Complementary

#18275D

#5D2B18

#495D18

Tetradic

#18275D

#5D1849

#5D4E18

#185D2B

Color Blindness Simulation

Original

#18275D

Protanopia

#1E1F50

Deuteranopia

#1E1C4D

Tritanopia

#194643

Achromatopsia

#282828

CSS Usage

background-color: #18275D;
color: #18275D;
border-color: #18275D;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FB
100
#E4E8F6
200
#C6CFF0
300
#9EADE6
400
#6981D8
500
#3455CB
600
#2A44A2
700
#213682
800
#1A2A65
900
#17224A
950
#0E152F

Contrast Checker

Text on white

14.12:1

AA Pass AAA Pass

Text on black

1.49:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026