#1C2443

#1C2443

Color Values

HEX

#1C2443

RGB

28, 36, 67

HSL

227.7, 41.1%, 18.6%

HSV

227.7, 58.2%, 26.3%

CMYK

58.2%, 46.3%, 0.0%, 73.7%

OKLCH

0.27 0.0588 271.1

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#1C2443

#433B1C

Analogous

#1C3743

#271C43

#1C2443

Triadic

#1C2443

#431C24

#24431C

Split Complementary

#1C2443

#43271C

#37431C

Tetradic

#1C2443

#431C37

#433B1C

#1C4327

Color Blindness Simulation

Original

#1C2443

Protanopia

#1F203C

Deuteranopia

#1F1E3A

Tritanopia

#1C3634

Achromatopsia

#252525

CSS Usage

background-color: #1C2443;
color: #1C2443;
border-color: #1C2443;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F6FA
100
#E7E9F3
200
#CDD3EA
300
#A9B3DB
400
#7A8AC7
500
#4B61B4
600
#3C4D90
700
#303E73
800
#26305A
900
#1F2642
950
#13182A

Contrast Checker

Text on white

15.19:1

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