#1c243d

Color #1c243d

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 18.38 Nearest Tailwind class slate-800 #1d293d · ΔE 3.9

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Conversions

HEX

#1c243d

RGB

rgb(28, 36, 61)

HSL

hsl(225.5, 37.1%, 17.5%)

HSV / HSB

hsv(225.5, 54.1%, 23.9%)

CMYK

cmyk(54.1%, 41%, 0%, 76.1%)

LAB

lab(14.65, 4.79, -17.14)

LCH

lch(14.65, 17.8, 285.61)

OKLCH

oklch(26.6%, 0.0483, 269.53)

HWB

hwb(225.5, 11%, 76.1%)

Harmony colors

Complementary

#3d351c

Analogous

#1c353d

#1c243d

#251c3d

Triadic

#1c243d

#3d1c24

#243d1c

Split-complementary

#1c243d

#3d251c

#353d1c

Tetradic

#1c243d

#351c3d

#3d351c

#243d1c

Square

#1c243d

#3d1c35

#3d351c

#1c3d25

Shades

Color #1c243d mixed toward black.

#171e33

#131829

#0e121f

#090c14

#05060a

Tints

Color #1c243d mixed toward white.

#32406d

#485d9d

#6f82bd

#9fabd3

#cfd5e9

Tones

Color #1c243d mixed toward gray.

#1f253a

#222738

#242835

#272a32

#2a2b2f

Accessibility

Aa White text on this color

15.34:1

Aa Black text on this color

1.37:1

White text reads better on this background (15.34:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#202038 · ΔE 3.4

Deuteranopia

#1f1f37 · ΔE 3.5

Tritanopia

#1c3433 · ΔE 18.7

Achromatopsia

#252525 · ΔE 13.1

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

Code

CSS

background-color: #1c243d;

Tailwind (arbitrary value)

bg-[#1c243d]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1c243d (#1c243d) is rgb(28, 36, 61) in RGB.

No, #1c243d 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 #1c243d, or check how it holds up for accessibility.

Generate a palette → Check contrast