#1b285c

Color #1b285c

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 19.95 Nearest Tailwind class blue-950 #162456 · ΔE 1.4

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

Conversions

HEX

#1b285c

RGB

rgb(27, 40, 92)

HSL

hsl(228, 54.6%, 23.3%)

HSV / HSB

hsv(228, 70.7%, 36.1%)

CMYK

cmyk(70.7%, 56.5%, 0%, 63.9%)

LAB

lab(18.02, 13.82, -32.89)

LCH

lch(18.02, 35.68, 292.79)

OKLCH

oklch(29.8%, 0.0944, 269.33)

HWB

hwb(228, 10.6%, 63.9%)

Harmony colors

Complementary

#5c4f1b

Analogous

#1b485c

#1b285c

#2e1b5c

Triadic

#1b285c

#5c1b28

#285c1b

Split-complementary

#1b285c

#5c2e1b

#485c1b

Tetradic

#1b285c

#4f1b5c

#5c4f1b

#285c1b

Square

#1b285c

#5c1b48

#5c4f1b

#1b5c2e

Shades

Color #1b285c mixed toward black.

#16214d

#121b3d

#0d142e

#090d1f

#04070f

Tints

Color #1b285c mixed toward white.

#2a3e8e

#3954c1

#687dd3

#9aa8e1

#cdd4f0

Tones

Color #1b285c mixed toward gray.

#202b56

#262e51

#2b324c

#313546

#363841

Accessibility

Aa White text on this color

13.96:1

Aa Black text on this color

1.5:1

White text reads better on this background (13.96:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#212153 · ΔE 3.5

Deuteranopia

#201f51 · ΔE 4

Tritanopia

#1c4b49 · ΔE 26.4

Achromatopsia

#2c2c2c · ΔE 20.4

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

Code

CSS

background-color: #1b285c;

Tailwind (arbitrary value)

bg-[#1b285c]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1b285c (#1b285c) is rgb(27, 40, 92) in RGB.

No, #1b285c is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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HEX to RGB Converter

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

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Contrast Checker

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

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Palette Generator

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

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Build something with this color

Generate a full palette from #1b285c, or check how it holds up for accessibility.

Generate a palette → Check contrast