Palettes / Colors / #643EA6

#643EA6 — Muted Purple

#643EA6 is a purple color we call Muted Purple, closest to the named color DarkSlateBlue (#483D8B). It belongs to the purple family.

Color name

Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #643EA6 when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#643EA6 is a cool purple color associated with luxury, creativity and mystery. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.

Its strongest partner is its complement #81A83E; it also sits naturally between #3E4CA8 and #993EA8. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 39% · Green 24% · Blue 65%

Cyan 40% · Magenta 63% · Yellow 0% · Key 35%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #643EA6

.text { color: #643EA6; }
.background { background-color: #643EA6; }
.border { border: 3px solid #643EA6; }
.text-rgb { color: rgb(100, 62, 166); }
.text-hsl { color: hsl(262, 46%, 45%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #643EA6; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(100, 62, 166, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #643EA6; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(100, 62, 166, 0.8); }

HTML: <p style="color:#643EA6">Text here</p> · <div style="background-color:#643EA6">Div content here</div>

Shades of #643EA6

Tints of #643EA6

Tones of #643EA6

Color harmonies

Complementary — #81A83E:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #643EA6: #FFFFFF.

Semi-transparent (opacity) text on #643EA6

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #643EA6 looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #643EA6 rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #643EA5  ·  #643EA7 →

Frequently asked questions

What color is #643EA6?

#643EA6 is Muted Purple, a purple color (RGB 100, 62, 166). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #643EA6?

#643EA6 is RGB 100, 62, 166 — HSL 262°, 46%, 45% — CMYK 40%, 63%, 0%, 35%.

What colors go with #643EA6?

Its complement is #81A83E; analogous partners are #3E4CA8 and #993EA8. It also appears in 6+ palettes in our collection.

Can I use #643EA6 for text?

White text on #643EA6 has a contrast ratio of 7.55:1 (passes WCAG AA); black text gives 2.78:1.