#171b30

Color #171b30

A muted very dark blue.

Closest named color Black #000000 · ΔE 18.63 Nearest Tailwind class slate-900 #0f172b · ΔE 2.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#171b30

RGB

rgb(23, 27, 48)

HSL

hsl(230.4, 35.2%, 13.9%)

HSV / HSB

hsv(230.4, 52.1%, 18.8%)

CMYK

cmyk(52.1%, 43.8%, 0%, 81.2%)

LAB

lab(10.4, 5.1, -14.59)

LCH

lch(10.4, 15.46, 289.27)

OKLCH

oklch(23%, 0.0411, 274.46)

HWB

hwb(230.4, 9%, 81.2%)

Harmony colors

Complementary

#302c17

Analogous

#172730

#171b30

#1f1730

Triadic

#171b30

#30171b

#1b3017

Split-complementary

#171b30

#301f17

#273017

Tetradic

#171b30

#2c1730

#302c17

#1b3017

Square

#171b30

#301727

#302c17

#17301f

Shades

Color #171b30 mixed toward black.

#131628

#0f1220

#0b0d18

#080910

#040408

Tints

Color #171b30 mixed toward white.

#2f3761

#465393

#6b77b8

#9ca4d0

#ced2e7

Tones

Color #171b30 mixed toward gray.

#191c2e

#1b1e2c

#1d1f2a

#1f2128

#212226

Accessibility

Aa White text on this color

16.99:1

Aa Black text on this color

1.24:1

White text reads better on this background (16.99:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#19192c · ΔE 1.9

Deuteranopia

#19182b · ΔE 2.4

Tritanopia

#172827 · ΔE 17.1

Achromatopsia

#1c1c1c · ΔE 12

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #171b30;

Tailwind (arbitrary value)

bg-[#171b30]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#171b30 (#171b30) is rgb(23, 27, 48) in RGB.

No, #171b30 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #171b30, or check how it holds up for accessibility.

Generate a palette → Check contrast