#1B309D

Color Details

HEX
#1B309D
RGB
rgb(27, 48, 157)
HSL
hsl(230, 71%, 36%)
CMYK
cmyk(83%, 69%, 0%, 38%)
Best text on this color #FFFFFF (CR 10.73:1) Determined by WCAG contrast ratio

Readability Previews

Black on #1b309d
Contrast 1.96:1 Fail
White on #1b309d
Contrast 10.73:1 AAA
#1b309d on Black
Contrast 1.96:1 Fail
#1b309d on White
Contrast 10.73:1 AAA

Tints & Shades

#4959b1
#7683c4
#a4acd8
#16267e
#101d5e
#0b133f

Complement & Analogous

#9d871b
#461b9d
#1b729d

Triadic

#9d1b30
#309d1b

Monochrome

#0b133f #101d5e #1b309d #7683c4 #a4acd8 #d1d6eb

Analogous

#1b729d #5f9cba #1b309d #6b49b1 #461b9d #38167e

Complementary Mix

#101d5e #1b309d #7683c4 #9d871b #bfb16b #665812

Nearby Colors

#1b309c
#1b309e
#1b308d
#1b30ad

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About #1B309D

#1B309D converts to RGB(27, 48, 157) and HSL(230, 71%, 36%). 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).

#1B309D FAQs

What is the RGB value of #1B309D?
RGB: 27, 48, 157. Copy as CSS: rgb(27, 48, 157)
Is #1B309D a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #1B309D?
Complement: #9d871b.
Does #1B309D have good contrast on white or black?
On white: 10.73:1 (AAA (normal text)). On black: 1.96:1 (Fails AA).