Palettes / Colors / #577AB2
#577AB2 — Muted Blue
#577AB2 is a blue color we call Muted Blue, closest to the named color SteelBlue (#4682B4). It belongs to the blue family.
Color name
Closest CSS keyword: steelblue (#4682B4) — not an exact match. CSS steelblue gives you #4682B4, a different color; use #577AB2 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.
#577AB2 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 #B28F57; it also sits naturally between #57A7B2 and #6257B2. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #577AB2 |
|---|---|
| RGB | 87, 122, 178 |
| HSL | 217°, 37%, 52% |
| HSV | 217°, 51%, 70% |
| CMYK | 51%, 31%, 0%, 30% |
| XYZ | 18.93, 19.16, 44.82 |
| Yxy | 19.16, 0.2283, 0.2311 |
| CIE-Lab | 50.87, 3.73, -33.48 |
| Hunter Lab | 43.77, 2.96, -33.70 |
RGB & CMYK percentages
Red 34% · Green 48% · Blue 70%
Cyan 51% · Magenta 31% · Yellow 0% · Key 30%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #577AB2
.text { color: #577AB2; }
.background { background-color: #577AB2; }
.border { border: 3px solid #577AB2; }
.text-rgb { color: rgb(87, 122, 178); }
.text-hsl { color: hsl(217, 37%, 52%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #577AB2; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(87, 122, 178, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #577AB2; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(87, 122, 178, 0.8); }
HTML: <p style="color:#577AB2">Text here</p> · <div style="background-color:#577AB2">Div content here</div>
Shades of #577AB2
Tints of #577AB2
Tones of #577AB2
Color harmonies
Complementary — #B28F57:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.35:1 AA large only |
|---|---|
| Against black text | 4.83:1 AA |
Best text color on #577AB2: #000000.
Semi-transparent (opacity) text on #577AB2
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #577AB2: ·
How #577AB2 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 #577AB2 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
Frequently asked questions
What color is #577AB2?
#577AB2 is Muted Blue, a blue color (RGB 87, 122, 178). Its closest standard named color is SteelBlue.
What is the RGB and HSL of #577AB2?
#577AB2 is RGB 87, 122, 178 — HSL 217°, 37%, 52% — CMYK 51%, 31%, 0%, 30%.
What colors go with #577AB2?
Its complement is #B28F57; analogous partners are #57A7B2 and #6257B2. It also appears in 6+ palettes in our collection.
Can I use #577AB2 for text?
Black text on #577AB2 has a contrast ratio of 4.83:1 (passes WCAG AA); white text gives 4.35:1.