#40737d

Color #40737d

A muted dark cyan.

Closest named color Slate Gray #708090 · ΔE 14.18 Nearest Tailwind class cyan-700 #007595 · ΔE 7.7

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Conversions

HEX

#40737d

RGB

rgb(64, 115, 125)

HSL

hsl(189.8, 32.3%, 37.1%)

HSV / HSB

hsv(189.8, 48.8%, 49%)

CMYK

cmyk(48.8%, 8%, 0%, 51%)

LAB

lab(45.4, -14.21, -10.83)

LCH

lch(45.4, 17.87, 217.31)

OKLCH

oklch(52.4%, 0.057, 211.65)

HWB

hwb(189.8, 25.1%, 51%)

Harmony colors

Complementary

#7d4a40

Analogous

#407d69

#40737d

#40557d

Triadic

#40737d

#7d4073

#737d40

Split-complementary

#40737d

#7d4055

#7d6940

Tetradic

#40737d

#4a407d

#7d4a40

#737d40

Square

#40737d

#69407d

#7d4a40

#557d40

Shades

Color #40737d mixed toward black.

#356068

#2b4d53

#203a3f

#15262a

#0b1315

Tints

Color #40737d mixed toward white.

#5294a1

#72abb7

#95c0c9

#b8d5db

#dceaed

Tones

Color #40737d mixed toward gray.

#457078

#4a6c73

#4f696e

#546569

#5a6264

Accessibility

Aa White text on this color

5.29:1

Aa Black text on this color

3.97:1

White text reads better on this background (5.29:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5a5b7b · ΔE 21.9

Deuteranopia

#57537a · ΔE 24.2

Tritanopia

#447978 · ΔE 5.7

Achromatopsia

#6b6b6b · ΔE 15.5

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

Code

CSS

background-color: #40737d;

Tailwind (arbitrary value)

bg-[#40737d]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#40737d (#40737d) is rgb(64, 115, 125) in RGB.

No, #40737d 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 #40737d, or check how it holds up for accessibility.

Generate a palette → Check contrast