#1B1F5C

Color Details

HEX
#1B1F5C
RGB
rgb(27, 31, 92)
HSL
hsl(236, 55%, 23%)
CMYK
cmyk(71%, 66%, 0%, 64%)
Best text on this color #FFFFFF (CR 15.03:1) Determined by WCAG contrast ratio

Readability Previews

Black on #1b1f5c
Contrast 1.40:1 Fail
White on #1b1f5c
Contrast 15.03:1 AAA
#1b1f5c on Black
Contrast 1.40:1 Fail
#1b1f5c on White
Contrast 15.03:1 AAA

Tints & Shades

#494c7d
#76799d
#a4a5be
#16194a
#101337
#0b0c25

Complement & Analogous

#5b571a
#361a5b
#1a3f5b

Triadic

#5b1a1f
#1f5b1a

Monochrome

#0b0c25 #101337 #1b1f5c #76799d #a4a5be #d1d2de

Analogous

#1a3f5b #5f798c #1b1f5c #5e487c #361a5b #2b1549

Complementary Mix

#101337 #1b1f5c #76799d #5b571a #94926a #3b3911

Nearby Colors

#1b1f5b
#1b1f5d
#1b1f4c
#1b1f6c

Embed #1B1F5C swatch

Embed this swatch

Use this HTML on your site (free with a link):

Open image

About #1B1F5C

#1B1F5C converts to RGB(27, 31, 92) and HSL(236, 55%, 23%). 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).

#1B1F5C FAQs

What is the RGB value of #1B1F5C?
RGB: 27, 31, 92. Copy as CSS: rgb(27, 31, 92)
Is #1B1F5C a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #1B1F5C?
Complement: #5b571a.
Does #1B1F5C have good contrast on white or black?
On white: 15.03:1 (AAA (normal text)). On black: 1.40:1 (Fails AA).