#123B51

Color Details

HEX
#123B51
RGB
rgb(18, 59, 81)
HSL
hsl(201, 64%, 19%)
CMYK
cmyk(78%, 27%, 0%, 68%)
Best text on this color #FFFFFF (CR 11.86:1) Determined by WCAG contrast ratio

Readability Previews

Black on #123b51
Contrast 1.77:1 Fail
White on #123b51
Contrast 11.86:1 AAA
#123b51 on Black
Contrast 1.77:1 Fail
#123b51 on White
Contrast 11.86:1 AAA

Tints & Shades

#416274
#718997
#a0b1b9
#0e2f41
#0b2331
#071820

Complement & Analogous

#4f2711
#111b4f
#114f46

Triadic

#4f113a
#3a4f11

Monochrome

#071820 #0b2331 #123b51 #718997 #a0b1b9 #d0d8dc

Analogous

#114f46 #58847e #123b51 #414972 #111b4f #0e163f

Complementary Mix

#0b2331 #123b51 #718997 #4f2711 #8d7364 #33190b

Nearby Colors

#123b50
#123b52
#123b41
#123b61

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About #123B51

#123B51 converts to RGB(18, 59, 81) and HSL(201, 64%, 19%). 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).

#123B51 FAQs

What is the RGB value of #123B51?
RGB: 18, 59, 81. Copy as CSS: rgb(18, 59, 81)
Is #123B51 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #123B51?
Complement: #4f2711.
Does #123B51 have good contrast on white or black?
On white: 11.86:1 (AAA (normal text)). On black: 1.77:1 (Fails AA).