#183a3a

Color #183a3a

A moderately saturated very dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 9.24 Nearest Tailwind class teal-950 #022f2e · ΔE 4.1

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Conversions

HEX

#183a3a

RGB

rgb(24, 58, 58)

HSL

hsl(180, 41.5%, 16.1%)

HSV / HSB

hsv(180, 58.6%, 22.7%)

CMYK

cmyk(58.6%, 0%, 0%, 77.3%)

LAB

lab(22.04, -12.28, -3.79)

LCH

lch(22.04, 12.85, 197.15)

OKLCH

oklch(32.3%, 0.0395, 195.41)

HWB

hwb(180, 9.4%, 77.3%)

Harmony colors

Complementary

#3a1818

Analogous

#183a29

#183a3a

#18293a

Triadic

#183a3a

#3a183a

#3a3a18

Split-complementary

#183a3a

#3a1829

#3a2918

Tetradic

#183a3a

#18183a

#3a1818

#3a3a18

Square

#183a3a

#29183a

#3a1818

#293a18

Shades

Color #183a3a mixed toward black.

#143030

#102727

#0c1d1d

#081313

#040a0a

Tints

Color #183a3a mixed toward white.

#2d6d6d

#429f9f

#68c0c0

#9ad5d5

#cdeaea

Tones

Color #183a3a mixed toward gray.

#1b3737

#1e3434

#213232

#232f2f

#262c2c

Accessibility

Aa White text on this color

12.32:1

Aa Black text on this color

1.71:1

White text reads better on this background (12.32:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2b3a · ΔE 18.2

Deuteranopia

#28263a · ΔE 21.5

Tritanopia

#1b3a3a · ΔE 0.7

Achromatopsia

#353535 · ΔE 13.2

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

Code

CSS

background-color: #183a3a;

Tailwind (arbitrary value)

bg-[#183a3a]

Related colors

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Light Cyan #e0ffff

Pale Turquoise #afeeee

Frequently asked questions

#183a3a (#183a3a) is rgb(24, 58, 58) in RGB.

No, #183a3a 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.

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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 #183a3a, or check how it holds up for accessibility.

Generate a palette → Check contrast