Palettes / Colors / #6563BB

#6563BB — Muted Blue

#6563BB is a blue color we call Muted Blue, closest to the named color SlateBlue (#6A5ACD). It belongs to the blue family.

Color name

Closest CSS keyword: slateblue (#6A5ACD) — not an exact match. CSS slateblue gives you #6A5ACD, a different color; use #6563BB 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.

#6563BB is a cool blue color associated with trust, calm and professionalism. 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 #B9BB63; it also sits naturally between #638DBB and #9063BB. 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 40% · Green 39% · Blue 73%

Cyan 46% · Magenta 47% · Yellow 0% · Key 27%

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

Previews

CSS code for #6563BB

.text { color: #6563BB; }
.background { background-color: #6563BB; }
.border { border: 3px solid #6563BB; }
.text-rgb { color: rgb(101, 99, 187); }
.text-hsl { color: hsl(241, 39%, 56%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #6563BB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(101, 99, 187, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #6563BB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(101, 99, 187, 0.8); }

HTML: <p style="color:#6563BB">Text here</p> · <div style="background-color:#6563BB">Div content here</div>

Shades of #6563BB

Tints of #6563BB

Tones of #6563BB

Color harmonies

Complementary — #B9BB63:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #6563BB: #FFFFFF.

Semi-transparent (opacity) text on #6563BB

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 #6563BB 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 #6563BB 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

← #6563BA  ·  #6563BC →

Frequently asked questions

What color is #6563BB?

#6563BB is Muted Blue, a blue color (RGB 101, 99, 187). Its closest standard named color is SlateBlue.

What is the RGB and HSL of #6563BB?

#6563BB is RGB 101, 99, 187 — HSL 241°, 39%, 56% — CMYK 46%, 47%, 0%, 27%.

What colors go with #6563BB?

Its complement is #B9BB63; analogous partners are #638DBB and #9063BB. It also appears in 6+ palettes in our collection.

Can I use #6563BB for text?

White text on #6563BB has a contrast ratio of 5.18:1 (passes WCAG AA); black text gives 4.06:1.