#12b5b9

Color #12b5b9

A vivid, highly saturated dark cyan.

Closest named color Light Sea Green #20b2aa · ΔE 6.94 Nearest Tailwind class teal-500 #00bba7 · ΔE 8.6

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Conversions

HEX

#12b5b9

RGB

rgb(18, 181, 185)

HSL

hsl(181.4, 82.3%, 39.8%)

HSV / HSB

hsv(181.4, 90.3%, 72.5%)

CMYK

cmyk(90.3%, 2.2%, 0%, 27.5%)

LAB

lab(67.03, -35.31, -12.79)

LCH

lch(67.03, 37.56, 199.91)

OKLCH

oklch(70.3%, 0.1172, 197.68)

HWB

hwb(181.4, 7.1%, 27.5%)

Harmony colors

Complementary

#b91612

Analogous

#12b969

#12b5b9

#1262b9

Triadic

#12b5b9

#b912b5

#b5b912

Split-complementary

#12b5b9

#b91262

#b96912

Tetradic

#12b5b9

#1612b9

#b91612

#b5b912

Square

#12b5b9

#6912b9

#b91612

#62b912

Shades

Color #12b5b9 mixed toward black.

#0f979a

#0c797b

#095b5d

#063c3e

#031e1f

Tints

Color #12b5b9 mixed toward white.

#16e3e8

#44e9ed

#73eef1

#a2f4f6

#d0f9fa

Tones

Color #12b5b9 mixed toward gray.

#20a8ab

#2e9b9d

#3c8d8f

#4a8081

#587373

Accessibility

Aa White text on this color

2.52:1

Aa Black text on this color

8.34:1

Black text reads better on this background (8.34:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#7d7eb8 · ΔE 31.9

Deuteranopia

#756ab8 · ΔE 37.3

Tritanopia

#2fb7b7 · ΔE 1.6

Achromatopsia

#a3a3a3 · ΔE 23.2

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

Code

CSS

background-color: #12b5b9;

Tailwind (arbitrary value)

bg-[#12b5b9]

Related colors

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Frequently asked questions

#12b5b9 (#12b5b9) is rgb(18, 181, 185) in RGB.

No, #12b5b9 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 #12b5b9, or check how it holds up for accessibility.

Generate a palette → Check contrast