#640d17

Color #640d17

A vivid, highly saturated dark red.

Closest named color Maroon #800000 · ΔE 22.16 Nearest Tailwind class red-950 #460809 · ΔE 6.3

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Conversions

HEX

#640d17

RGB

rgb(100, 13, 23)

HSL

hsl(353.1, 77%, 22.2%)

HSV / HSB

hsv(353.1, 87%, 39.2%)

CMYK

cmyk(0%, 87%, 77%, 60.8%)

LAB

lab(20.28, 37.65, 19.21)

LCH

lch(20.28, 42.27, 27.03)

OKLCH

oklch(32.7%, 0.1187, 21.66)

HWB

hwb(353.1, 5.1%, 60.8%)

Harmony colors

Complementary

#0d645a

Analogous

#640d43

#640d17

#642f0d

Triadic

#640d17

#17640d

#0d1764

Split-complementary

#640d17

#0d642f

#0d4364

Tetradic

#640d17

#645a0d

#0d645a

#0d1764

Square

#640d17

#43640d

#0d645a

#2f0d64

Shades

Color #640d17 mixed toward black.

#530b13

#43090f

#32070c

#210408

#110204

Tints

Color #640d17 mixed toward white.

#9f1525

#d91c32

#e84f61

#f08a96

#f7c4ca

Tones

Color #640d17 mixed toward gray.

#5d141d

#561c22

#4e2328

#472a2d

#403133

Accessibility

Aa White text on this color

13.03:1

Aa Black text on this color

1.61:1

White text reads better on this background (13.03:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#4d4c15 · ΔE 35.7

Deuteranopia

#505514 · ΔE 39.7

Tritanopia

#621313 · ΔE 2.5

Achromatopsia

#313131 · ΔE 23.8

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

Code

CSS

background-color: #640d17;

Tailwind (arbitrary value)

bg-[#640d17]

Related colors

Light Pink #ffb6c1

Pink #ffc0cb

Crimson #dc143c

Pale Violet Red #db7093

Lavender Blush #fff0f5

Hot Pink #ff69b4

Frequently asked questions

#640d17 (#640d17) is rgb(100, 13, 23) in RGB.

No, #640d17 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 #640d17, or check how it holds up for accessibility.

Generate a palette → Check contrast