#8B66EB Color

#8B66EB is rgb(139, 102, 235) in RGB, hsl(257, 77%, 66%) in HSL, and about cmyk(41%, 57%, 0%, 8%) in CMYK. It has no registered color name of its own — the closest is Medium Slate Blue (#7B68EE), clearly related but distinguishable side by side at ΔE 5.53. Black text is the more readable choice on this background.

#8B66EB

HEX#8B66EB

RGBrgb(139, 102, 235)

HSLhsl(257, 77%, 66%)

HSVhsv(257, 57%, 92%)

CMYKcmyk(41%, 57%, 0%, 8%)

OKLCHoklch(61.3% 0.192 292.6)

LABlab(52.18% 38.24 -63.27)

LCHlch(52.18% 73.93 301.15)

What #8B66EB 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 #8B66EB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Slate Blue#7B68EEΔE 5.53 Lavender Indigo#9457EBΔE 10.78 Slate Blue#6A5ACDΔE 12.35 Majorelle Blue#6050DCΔE 12.65 Iris#5A4FCFΔE 13.11 Medium Purple#9370DBΔE 14.41

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

#8B66EB Channel Values

How #8B66EB breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 139 · G 102 · B 235	8-bit channels as sent to the display
HSL	H 257° · S 77% · L 66%	Easiest model for building lighter and darker variants
HSV	H 257° · S 57% · V 92%	Matches the picker in most design tools
CMYK	C 41% · M 57% · Y 0% · K 8%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	4.04:1 vs white · 5.2:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #8B66EB 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 text4.04:1AA normal AA large AAA normal

TextBlack text5.2:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #8B66EB in the contrast checker.

Colors That Go With #8B66EB

Pairings derived from color-wheel relationships. The complementary color sits opposite #8B66EB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #8B66EB

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #8B66EB.

How #8B66EB 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#8B66EB

Protanopia#6D6DEB

Protanomaly#7A6BEB

Deuteranopia#7474EB

Deuteranomaly#7E6FEB

Tritanopia#728181

Tritanomaly#7D77B5

Achromatopsia#7E7E7E

Test a full palette in the color blindness simulator.

Using #8B66EB in Code

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

CSS custom property--color-8b66eb: #8B66EB;

CSS backgroundbackground-color: #8B66EB;

Tailwind configcolors: { 'color-8b66eb': '#8B66EB' }

SwiftUIColor(red: 0.545, green: 0.400, blue: 0.922)

Android XML<color name="color_8b66eb">#8B66EB</color>

SVG fillfill="#8B66EB"

More Purple Colors

#8B66EB sits in the purple family. These are its neighbours across that family's full range, each with its own breakdown.

150024 fdf8ff 170b22 fdf4ff 1b0d35 faf5ff 1d0731 fae8ff 1e0033 f6cfff 20002e f3e8ff 300052 402060 541490 6600cc 7008e7 8806ce 9900cc a11fff b19cd9 c27aff cebeef e0b2eb

#8B66EB Frequently Asked Questions

What color is #8B66EB?

#8B66EB is a light purple — rgb(139, 102, 235) in RGB and hsl(257, 77%, 66%) in HSL. It carries no registered color name of its own; the closest named color is Medium Slate Blue (#7B68EE), which is clearly related but distinguishable side by side at a CIE76 distance of 5.53.

What is the RGB value of #8B66EB?

#8B66EB is rgb(139, 102, 235) — red 139, green 102, and blue 235 on the 0-255 scale.

What is the CMYK value of #8B66EB?

#8B66EB converts to approximately cmyk(41%, 57%, 0%, 8%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #8B66EB be black or white?

Black text is the more readable choice. #8B66EB scores 4.04:1 against white and 5.2:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #8B66EB as a CSS color keyword?

No. #8B66EB 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 mediumslateblue (#7B68EE) at a CIE76 distance of 5.53, which is clearly related but distinguishable side by side.

Open #8B66EB in a Tool

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