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#644C6B Color

#644C6B is rgb(100, 76, 107) in RGB, hsl(286, 17%, 36%) in HSL, and about cmyk(7%, 29%, 0%, 58%) in CMYK. It has no registered color name of its own — the closest is English Violet (#563C5C), clearly related but distinguishable side by side at ΔE 6.69. White text is the more readable choice on this background.

#644C6B
HEX#644C6B
RGBrgb(100, 76, 107)
HSLhsl(286, 17%, 36%)
HSVhsv(286, 29%, 42%)
CMYKcmyk(7%, 29%, 0%, 58%)
OKLCHoklch(45.4% 0.058 318.5)
LABlab(35.81% 15.04 -14.01)
LCHlch(35.81% 20.55 317.03)

What #644C6B Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #644C6B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

English Violet#563C5CΔE 6.69Dark Byzantium#5D3954ΔE 9.34Eggplant#614051ΔE 10.96Chinese Violet#856088ΔE 11.75Japanese Violet#5B3256ΔE 11.99Independence#4C516DΔE 12.11

Browse the full index of named colors A-Z or every purple in the library.

#644C6B Channel Values

How #644C6B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 100 · G 76 · B 1078-bit channels as sent to the display
HSLH 286° · S 17% · L 36%Easiest model for building lighter and darker variants
HSVH 286° · S 29% · V 42%Matches the picker in most design tools
CMYKC 7% · M 29% · Y 0% · K 58%Approximate ink mix; confirm with an ICC profile before printing
Luminance7.53:1 vs white · 2.79:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #644C6B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text7.53:1AA normal AA large AAA normal
Fails AABlack text2.79:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #644C6B in the contrast checker.

Colors That Go With #644C6B

Pairings derived from color-wheel relationships. The complementary color sits opposite #644C6B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#644C6B
Complementary
#536B4C
Analogous
#554C6B
Analogous
#6B4C63
Triadic
#6B644C
Triadic
#4C6B64
Split comp.
#636B4C
Split comp.
#4C6B55

Tints & Shades of #644C6B

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

#7D5F86
#94769E
#A991B1
#BCA8C2
#D1C3D5
#E5DEE8

Shades

#56425C
#4B3951
#3D2F42
#322636
#241C27
#19131B

Want a full 50-950 ramp with semantic roles? Generate design tokens from #644C6B.

How #644C6B Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#644C6B
Protanopia#51516B
Protanomaly#594F6B
Deuteranopia#55556A
Deuteranomaly#5B516B
Tritanopia#605151
Tritanomaly#624F5C
Achromatopsia#545454

Test a full palette in the color blindness simulator.

Using #644C6B in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-644c6b: #644C6B;
CSS backgroundbackground-color: #644C6B;
Tailwind configcolors: { 'color-644c6b': '#644C6B' }
SwiftUIColor(red: 0.392, green: 0.298, blue: 0.420)
Android XML<color name="color_644c6b">#644C6B</color>
SVG fillfill="#644C6B"

More Purple Colors

#644C6B sits in the purple family. These are its neighbours across that family's full range, each with its own breakdown.

150024fdf8ff170b22fdf4ff1b0d35faf5ff1d0731fae8ff1e0033f6cfff20002ef3e8ff3000524020605414906600cc7008e78806ce9900cca11fffb19cd9c27affcebeefe0b2eb

#644C6B Frequently Asked Questions

What color is #644C6B?

#644C6B is a dark purple — rgb(100, 76, 107) in RGB and hsl(286, 17%, 36%) in HSL. It carries no registered color name of its own; the closest named color is English Violet (#563C5C), which is clearly related but distinguishable side by side at a CIE76 distance of 6.69.

What is the RGB value of #644C6B?

#644C6B is rgb(100, 76, 107) — red 100, green 76, and blue 107 on the 0-255 scale.

What is the CMYK value of #644C6B?

#644C6B converts to approximately cmyk(7%, 29%, 0%, 58%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #644C6B be black or white?

White text is the more readable choice. #644C6B scores 7.53:1 against white and 2.79:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #644C6B as a CSS color keyword?

No. #644C6B is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is dimgray (#696969) at a CIE76 distance of 22.28, which is visibly different.

Open #644C6B in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every purple in the color library, the guide to shades of purple, or the full color library.