#1a2139

Color #1a2139

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 19.22 Nearest Tailwind class slate-900 #0f172b · ΔE 3.6

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Conversions

HEX

#1a2139

RGB

rgb(26, 33, 57)

HSL

hsl(226.5, 37.3%, 16.3%)

HSV / HSB

hsv(226.5, 54.4%, 22.4%)

CMYK

cmyk(54.4%, 42.1%, 0%, 77.6%)

LAB

lab(13.25, 4.91, -16.55)

LCH

lch(13.25, 17.26, 286.52)

OKLCH

oklch(25.4%, 0.0466, 270.49)

HWB

hwb(226.5, 10.2%, 77.6%)

Harmony colors

Complementary

#39321a

Analogous

#1a3139

#1a2139

#231a39

Triadic

#1a2139

#391a21

#21391a

Split-complementary

#1a2139

#39231a

#31391a

Tetradic

#1a2139

#321a39

#39321a

#21391a

Square

#1a2139

#391a31

#39321a

#1a3923

Shades

Color #1a2139 mixed toward black.

#161c30

#111626

#0d111d

#090b13

#04060a

Tints

Color #1a2139 mixed toward white.

#303d6a

#475a9b

#6c7ebc

#9da9d2

#ced4e9

Tones

Color #1a2139 mixed toward gray.

#1d2236

#1f2434

#222531

#24272f

#27282c

Accessibility

Aa White text on this color

15.9:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.9:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1d1d34 · ΔE 3.1

Deuteranopia

#1d1c33 · ΔE 3.6

Tritanopia

#1a302f · ΔE 18.3

Achromatopsia

#222222 · ΔE 12.9

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

Code

CSS

background-color: #1a2139;

Tailwind (arbitrary value)

bg-[#1a2139]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1a2139 (#1a2139) is rgb(26, 33, 57) in RGB.

No, #1a2139 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

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 #1a2139, or check how it holds up for accessibility.

Generate a palette → Check contrast