#11273A

#11273A

Color Values

HEX

#11273A

RGB

17, 39, 58

HSL

207.8, 54.7%, 14.7%

HSV

207.8, 70.7%, 22.7%

CMYK

70.7%, 32.8%, 0.0%, 77.3%

OKLCH

0.2648 0.0455 246.6

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#11273A

#3A2411

Analogous

#113A38

#11123A

#11273A

Triadic

#11273A

#3A1127

#273A11

Split Complementary

#11273A

#3A1112

#3A3811

Tetradic

#11273A

#38113A

#3A2411

#123A11

Color Blindness Simulation

Original

#11273A

Protanopia

#1B1B35

Deuteranopia

#191834

Tritanopia

#123231

Achromatopsia

#242424

CSS Usage

background-color: #11273A;
color: #11273A;
border-color: #11273A;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F4F8FB
100
#E5EEF5
200
#C8DDEF
300
#A0C4E3
400
#6DA4D4
500
#3A85C5
600
#2E6A9E
700
#25557E
800
#1D4263
900
#193248
950
#10202E

Contrast Checker

Text on white

15.27:1

AA Pass AAA Pass

Text on black

1.38:1

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