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#634F78 Color

#634F78 is rgb(99, 79, 120) in RGB, hsl(269, 21%, 39%) in HSL, and about cmyk(18%, 34%, 0%, 53%) 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 9.66. White text is the more readable choice on this background.

#634F78
HEX#634F78
RGBrgb(99, 79, 120)
HSLhsl(269, 21%, 39%)
HSVhsv(269, 34%, 47%)
CMYKcmyk(18%, 34%, 0%, 53%)
OKLCHoklch(46.5% 0.069 306.2)
LABlab(36.97% 15.21 -20.30)
LCHlch(36.97% 25.37 306.84)

What #634F78 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 #634F78, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

English Violet#563C5CΔE 9.66Purple Navy#4E5180ΔE 9.84Chinese Violet#856088ΔE 11.24French Lilac#86608EΔE 11.52Cyber Grape#58427CΔE 11.53Dark Blue-gray#666699ΔE 12.42

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

#634F78 Channel Values

How #634F78 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 99 · G 79 · B 1208-bit channels as sent to the display
HSLH 269° · S 21% · L 39%Easiest model for building lighter and darker variants
HSVH 269° · S 34% · V 47%Matches the picker in most design tools
CMYKC 18% · M 34% · Y 0% · K 53%Approximate ink mix; confirm with an ICC profile before printing
Luminance7.19:1 vs white · 2.92:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #634F78 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 text7.19:1AA normal AA large AAA normal
Fails AABlack text2.92:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #634F78 in the contrast checker.

Colors That Go With #634F78

Pairings derived from color-wheel relationships. The complementary color sits opposite #634F78; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#634F78
Complementary
#64784F
Analogous
#4F4F78
Analogous
#784F78
Triadic
#78634F
Triadic
#4F7863
Split comp.
#78784F
Split comp.
#4F784F

Tints & Shades of #634F78

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

#775F91
#8E77A6
#A390B6
#BAACC9
#CEC4D9
#E5E0EB

Shades

#564469
#493A59
#3D304A
#30263B
#231C2B
#17121C

Want a full 50-950 ramp with semantic roles? Generate design tokens from #634F78.

How #634F78 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#634F78
Protanopia#535378
Protanomaly#5A5178
Deuteranopia#565678
Deuteranomaly#5C5378
Tritanopia#5E5656
Tritanomaly#605365
Achromatopsia#575757

Test a full palette in the color blindness simulator.

Using #634F78 in Code

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

CSS custom property--color-634f78: #634F78;
CSS backgroundbackground-color: #634F78;
Tailwind configcolors: { 'color-634f78': '#634F78' }
SwiftUIColor(red: 0.388, green: 0.310, blue: 0.471)
Android XML<color name="color_634f78">#634F78</color>
SVG fillfill="#634F78"

More Purple Colors

#634F78 sits in the purple family. These are its neighbours across that family's full range, each with its own breakdown.

150024fdf8ff170b22fdf4ff1b0d35faf5ff1d0731fae8ff1e0033f6cfff20002ef3e8ff3000524020605414906600cc7008e78806ce9900cca11fffb19cd9c27affcebeefe0b2eb

#634F78 Frequently Asked Questions

What color is #634F78?

#634F78 is a dark purple — rgb(99, 79, 120) in RGB and hsl(269, 21%, 39%) 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 9.66.

What is the RGB value of #634F78?

#634F78 is rgb(99, 79, 120) — red 99, green 79, and blue 120 on the 0-255 scale.

What is the CMYK value of #634F78?

#634F78 converts to approximately cmyk(18%, 34%, 0%, 53%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #634F78 be black or white?

White text is the more readable choice. #634F78 scores 7.19:1 against white and 2.92:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #634F78 as a CSS color keyword?

No. #634F78 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 darkslateblue (#483D8B) at a CIE76 distance of 24.22, which is visibly different.

Open #634F78 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.