Palettes / Colors / #577EDD

#577EDD — Blue

#577EDD is a blue color we call Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

Color name

Closest CSS keyword: royalblue (#4169E1) — not an exact match. CSS royalblue gives you #4169E1, a different color; use #577EDD 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.

#577EDD is a cool blue color associated with trust, calm and professionalism. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #DCB656; it also sits naturally between #56BFDC and #7356DC. 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 34% · Green 49% · Blue 87%

Cyan 61% · Magenta 43% · Yellow 0% · Key 13%

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

Previews

CSS code for #577EDD

.text { color: #577EDD; }
.background { background-color: #577EDD; }
.border { border: 3px solid #577EDD; }
.text-rgb { color: rgb(87, 126, 221); }
.text-hsl { color: hsl(223, 66%, 60%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #577EDD; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(87, 126, 221, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #577EDD; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(87, 126, 221, 0.8); }

HTML: <p style="color:#577EDD">Text here</p> · <div style="background-color:#577EDD">Div content here</div>

Shades of #577EDD

Tints of #577EDD

Tones of #577EDD

Color harmonies

Complementary — #DCB656:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #577EDD: #000000.

Semi-transparent (opacity) text on #577EDD

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 #577EDD 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 #577EDD 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

← #577EDC  ·  #577EDE →

Frequently asked questions

What color is #577EDD?

#577EDD is Blue, a blue color (RGB 87, 126, 221). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #577EDD?

#577EDD is RGB 87, 126, 221 — HSL 223°, 66%, 60% — CMYK 61%, 43%, 0%, 13%.

What colors go with #577EDD?

Its complement is #DCB656; analogous partners are #56BFDC and #7356DC. It also appears in 6+ palettes in our collection.

Can I use #577EDD for text?

Black text on #577EDD has a contrast ratio of 5.43:1 (passes WCAG AA); white text gives 3.86:1.