Palettes / Colors / #427BBD
#427BBD — Muted Blue
#427BBD 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 #427BBD 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.
#427BBD 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 #BD8442; it also sits naturally between #42B9BD and #4642BD. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #427BBD |
|---|---|
| RGB | 66, 123, 189 |
| HSL | 212°, 48%, 50% |
| HSV | 212°, 65%, 74% |
| CMYK | 65%, 35%, 0%, 26% |
| XYZ | 18.52, 19.00, 50.84 |
| Yxy | 19.00, 0.2096, 0.2150 |
| CIE-Lab | 50.69, 2.41, -40.18 |
| Hunter Lab | 43.59, 1.90, -42.59 |
RGB & CMYK percentages
Red 26% · Green 48% · Blue 74%
Cyan 65% · Magenta 35% · Yellow 0% · Key 26%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #427BBD
.text { color: #427BBD; }
.background { background-color: #427BBD; }
.border { border: 3px solid #427BBD; }
.text-rgb { color: rgb(66, 123, 189); }
.text-hsl { color: hsl(212, 48%, 50%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #427BBD; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(66, 123, 189, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #427BBD; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(66, 123, 189, 0.8); }
HTML: <p style="color:#427BBD">Text here</p> · <div style="background-color:#427BBD">Div content here</div>
Shades of #427BBD
Tints of #427BBD
Tones of #427BBD
Color harmonies
Complementary — #BD8442:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.38:1 AA large only |
|---|---|
| Against black text | 4.80:1 AA |
Best text color on #427BBD: #000000.
Semi-transparent (opacity) text on #427BBD
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 #427BBD: ·
How #427BBD 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 #427BBD 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 #427BBD?
#427BBD is Muted Blue, a blue color (RGB 66, 123, 189). Its closest standard named color is SteelBlue.
What is the RGB and HSL of #427BBD?
#427BBD is RGB 66, 123, 189 — HSL 212°, 48%, 50% — CMYK 65%, 35%, 0%, 26%.
What colors go with #427BBD?
Its complement is #BD8442; analogous partners are #42B9BD and #4642BD. It also appears in 6+ palettes in our collection.
Can I use #427BBD for text?
Black text on #427BBD has a contrast ratio of 4.80:1 (passes WCAG AA); white text gives 4.38:1.