#128a9e

Color #128a9e

A vivid, highly saturated dark cyan.

Closest named color Dark Cyan #008b8b · ΔE 12.84 Nearest Tailwind class cyan-600 #0092b8 · ΔE 6.6

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

Conversions

HEX

#128a9e

RGB

rgb(18, 138, 158)

HSL

hsl(188.6, 79.5%, 34.5%)

HSV / HSB

hsv(188.6, 88.6%, 62%)

CMYK

cmyk(88.6%, 12.7%, 0%, 38%)

LAB

lab(52.7, -22.91, -19.25)

LCH

lch(52.7, 29.92, 220.04)

OKLCH

oklch(58.3%, 0.0987, 213.05)

HWB

hwb(188.6, 7.1%, 38%)

Harmony colors

Complementary

#9e2612

Analogous

#129e6c

#128a9e

#12449e

Triadic

#128a9e

#9e128a

#8a9e12

Split-complementary

#128a9e

#9e1244

#9e6c12

Tetradic

#128a9e

#26129e

#9e2612

#8a9e12

Square

#128a9e

#6c129e

#9e2612

#449e12

Shades

Color #128a9e mixed toward black.

#0f7384

#0c5c69

#09454f

#062e35

#03171a

Tints

Color #128a9e mixed toward white.

#18b5d0

#37cfe8

#69dbee

#9be7f4

#cdf3f9

Tones

Color #128a9e mixed toward gray.

#1e8292

#297987

#35717b

#41696f

#4c6064

Accessibility

Aa White text on this color

4.07:1

Aa Black text on this color

5.15:1

Black text reads better on this background (5.15:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5f6099 · ΔE 26.6

Deuteranopia

#595098 · ΔE 30.1

Tritanopia

#259695 · ΔE 9.2

Achromatopsia

#7e7e7e · ΔE 20.4

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

Code

CSS

background-color: #128a9e;

Tailwind (arbitrary value)

bg-[#128a9e]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Frequently asked questions

#128a9e (#128a9e) is rgb(18, 138, 158) in RGB.

No, #128a9e 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.

Try it → Generators

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 #128a9e, or check how it holds up for accessibility.

Generate a palette → Check contrast