#181130

#181130

Color Values

HEX

#181130

RGB

24, 17, 48

HSL

253.5, 47.7%, 12.7%

HSV

253.5, 64.6%, 18.8%

CMYK

50.0%, 64.6%, 0.0%, 81.2%

OKLCH

0.2061 0.0593 290.6

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#181130

#293011

Analogous

#111930

#271130

#181130

Triadic

#181130

#301811

#113018

Split Complementary

#181130

#302711

#193011

Tetradic

#181130

#301119

#293011

#113027

Color Blindness Simulation

Original

#181130

Protanopia

#151529

Deuteranopia

#151627

Tritanopia

#182321

Achromatopsia

#151515

CSS Usage

background-color: #181130;
color: #181130;
border-color: #181130;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F4FA
100
#E9E6F4
200
#D2CAEC
300
#B2A5DF
400
#8874CE
500
#5E43BC
600
#4B3597
700
#3C2B79
800
#2F215E
900
#251C45
950
#17112C

Contrast Checker

Text on white

18.08:1

AA Pass AAA Pass

Text on black

1.16:1

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