#1C3F63

#1C3F63

Color Values

HEX

#1C3F63

RGB

28, 63, 99

HSL

210.4, 55.9%, 24.9%

HSV

210.4, 71.7%, 38.8%

CMYK

71.7%, 36.4%, 0.0%, 61.2%

OKLCH

0.3606 0.0747 251.2

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#1C3F63

#63401C

Analogous

#1C6363

#1C1C63

#1C3F63

Triadic

#1C3F63

#631C3F

#3F631C

Split Complementary

#1C3F63

#631C1C

#63631C

Tetradic

#1C3F63

#631C63

#63401C

#1C631C

Color Blindness Simulation

Original

#1C3F63

Protanopia

#2B2B5A

Deuteranopia

#292658

Tritanopia

#1E5352

Achromatopsia

#3A3A3A

CSS Usage

background-color: #1C3F63;
color: #1C3F63;
border-color: #1C3F63;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F7FB
100
#E5EDF6
200
#C7DBEF
300
#A0C1E4
400
#6CA0D5
500
#387FC7
600
#2D659F
700
#24517F
800
#1C3F63
900
#183049
950
#0F1E2E

Contrast Checker

Text on white

10.82:1

AA Pass AAA Pass

Text on black

1.94:1

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