Palettes / Colors / #423ABB

#423ABB — Muted Blue

#423ABB is a blue color we call Muted Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.

#423ABB 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 #B3BB3A; it also sits naturally between #3A72BB and #833ABB. 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 26% · Green 23% · Blue 73%

Cyan 65% · Magenta 69% · Yellow 0% · Key 27%

Previews

CSS code for #423ABB

.text { color: #423ABB; }
.background { background-color: #423ABB; }
.border { border: 3px solid #423ABB; }
.text-rgb { color: rgb(66, 58, 187); }
.text-hsl { color: hsl(244, 53%, 48%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #423ABB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(66, 58, 187, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #423ABB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(66, 58, 187, 0.8); }

HTML: <p style="color:#423ABB">Text here</p> · <div style="background-color:#423ABB">Div content here</div>

Shades of #423ABB

Tints of #423ABB

Tones of #423ABB

Color harmonies

Complementary — #B3BB3A:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #423ABB: #FFFFFF.

How #423ABB 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 #423ABB or a close neighbour

Similar colors

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

Browse neighbouring colors

← #423ABA  ·  #423ABC →

Frequently asked questions

What color is #423ABB?

#423ABB is Muted Blue, a blue color (RGB 66, 58, 187). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #423ABB?

#423ABB is RGB 66, 58, 187 — HSL 244°, 53%, 48% — CMYK 65%, 69%, 0%, 27%.

What colors go with #423ABB?

Its complement is #B3BB3A; analogous partners are #3A72BB and #833ABB. It also appears in 6+ palettes in our collection.

Can I use #423ABB for text?

White text on #423ABB has a contrast ratio of 8.22:1 (passes WCAG AA); black text gives 2.55:1.