#123D8C

Color Details

HEX
#123D8C
RGB
rgb(18, 61, 140)
HSL
hsl(219, 77%, 31%)
CMYK
cmyk(87%, 56%, 0%, 45%)
Best text on this color #FFFFFF (CR 10.14:1) Determined by WCAG contrast ratio

Readability Previews

Black on #123d8c
Contrast 2.07:1 Fail
White on #123d8c
Contrast 10.14:1 AAA
#123d8c on Black
Contrast 2.07:1 Fail
#123d8c on White
Contrast 10.14:1 AAA

Tints & Shades

#4164a3
#718bba
#a0b1d1
#0e3170
#0b2554
#071838

Complement & Analogous

#8c6112
#24128c
#127a8c

Triadic

#8c123d
#3d8c12

Monochrome

#071838 #0b2554 #123d8c #718bba #a0b1d1 #d0d8e8

Analogous

#127a8c #59a2af #123d8c #5041a3 #24128c #1d0e70

Complementary Mix

#0b2554 #123d8c #718bba #8c6112 #b49865 #5b3f0c

Nearby Colors

#123d8b
#123d8d
#123d7c
#123d9c

Embed #123D8C swatch

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About #123D8C

#123D8C converts to RGB(18, 61, 140) and HSL(219, 77%, 31%). This page provides quick readability checks, related hues (complementary and analogous), and ready-made palettes so you can drop the color into UI components, images, or CSS immediately.

Tip: Use the “Best text” chip above as a safe default foreground on this color (chosen by contrast ratio).

#123D8C FAQs

What is the RGB value of #123D8C?
RGB: 18, 61, 140. Copy as CSS: rgb(18, 61, 140)
Is #123D8C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #123D8C?
Complement: #8c6112.
Does #123D8C have good contrast on white or black?
On white: 10.14:1 (AAA (normal text)). On black: 2.07:1 (Fails AA).