Skip to content

#A666D6 Color

#A666D6 is rgb(166, 102, 214) in RGB, hsl(274, 58%, 62%) in HSL, and about cmyk(22%, 52%, 0%, 16%) in CMYK. It has no registered color name of its own — the closest is Rich Lavender (#A76BCF), clearly related but distinguishable side by side at ΔE 6.44. Black text is the more readable choice on this background.

#A666D6
HEX#A666D6
RGBrgb(166, 102, 214)
HSLhsl(274, 58%, 62%)
HSVhsv(274, 52%, 84%)
CMYKcmyk(22%, 52%, 0%, 16%)
OKLCHoklch(62.7% 0.172 308.6)
LABlab(54.12% 41.64 -48.17)
LCHlch(54.12% 63.67 310.84)

What #A666D6 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 #A666D6, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Rich Lavender#A76BCFΔE 6.44Amethyst#9966CCΔE 6.47Rich Lilac#B666D2ΔE 6.92Medium Purple#9370DBΔE 10.23Purple Plum#9C51B6ΔE 10.31Lavender (Floral)#B57EDCΔE 12.74

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

#A666D6 Channel Values

How #A666D6 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 166 · G 102 · B 2148-bit channels as sent to the display
HSLH 274° · S 58% · L 62%Easiest model for building lighter and darker variants
HSVH 274° · S 52% · V 84%Matches the picker in most design tools
CMYKC 22% · M 52% · Y 0% · K 16%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.82:1 vs white · 5.49:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #A666D6 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.

Fails AAWhite text3.82:1AA normal AA large AAA normal
TextBlack text5.49:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #A666D6 in the contrast checker.

Colors That Go With #A666D6

Pairings derived from color-wheel relationships. The complementary color sits opposite #A666D6; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#A666D6
Complementary
#97D666
Analogous
#6D66D6
Analogous
#D666CF
Triadic
#D6A666
Triadic
#66D6A6
Split comp.
#CFD666
Split comp.
#66D66D

Tints & Shades of #A666D6

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

#B17ADC
#BD8EE1
#C9A2E6
#D7BBED
#E3CFF2
#EFE3F8

Shades

#9346CE
#7C30B5
#662895
#501F75
#3A1655
#210D30

Want a full 50-950 ramp with semantic roles? Generate design tokens from #A666D6.

How #A666D6 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#A666D6
Protanopia#7474D6
Protanomaly#8B6FD6
Deuteranopia#8080D5
Deuteranomaly#9176D5
Tritanopia#987C7C
Tritanomaly#9E74A8
Achromatopsia#828282

Test a full palette in the color blindness simulator.

Using #A666D6 in Code

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

CSS custom property--color-a666d6: #A666D6;
CSS backgroundbackground-color: #A666D6;
Tailwind configcolors: { 'color-a666d6': '#A666D6' }
SwiftUIColor(red: 0.651, green: 0.400, blue: 0.839)
Android XML<color name="color_a666d6">#A666D6</color>
SVG fillfill="#A666D6"

More Purple Colors

#A666D6 sits in the purple family. These are its neighbours across that family's full range, each with its own breakdown.

150024fdf8ff170b22fdf4ff1b0d35faf5ff1d0731fae8ff1e0033f6cfff20002ef3e8ff3000524020605414906600cc7008e78806ce9900cca11fffb19cd9c27affcebeefe0b2eb

#A666D6 Frequently Asked Questions

What color is #A666D6?

#A666D6 is a light purple — rgb(166, 102, 214) in RGB and hsl(274, 58%, 62%) in HSL. It carries no registered color name of its own; the closest named color is Rich Lavender (#A76BCF), which is clearly related but distinguishable side by side at a CIE76 distance of 6.44.

What is the RGB value of #A666D6?

#A666D6 is rgb(166, 102, 214) — red 166, green 102, and blue 214 on the 0-255 scale.

What is the CMYK value of #A666D6?

#A666D6 converts to approximately cmyk(22%, 52%, 0%, 16%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #A666D6 be black or white?

Black text is the more readable choice. #A666D6 scores 3.82:1 against white and 5.49:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #A666D6 as a CSS color keyword?

No. #A666D6 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 mediumpurple (#9370DB) at a CIE76 distance of 10.23, which is visibly different.

Open #A666D6 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.