Palettes / Colors / #397CA3

#397CA3 — Muted Blue

#397CA3 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 #397CA3 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.

#397CA3 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 #A26039; it also sits naturally between #39A294 and #3947A2. 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 22% · Green 49% · Blue 64%

Cyan 65% · Magenta 24% · Yellow 0% · Key 36%

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

Previews

CSS code for #397CA3

.text { color: #397CA3; }
.background { background-color: #397CA3; }
.border { border: 3px solid #397CA3; }
.text-rgb { color: rgb(57, 124, 163); }
.text-hsl { color: hsl(202, 48%, 43%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #397CA3; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(57, 124, 163, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #397CA3; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(57, 124, 163, 0.8); }

HTML: <p style="color:#397CA3">Text here</p> · <div style="background-color:#397CA3">Div content here</div>

Shades of #397CA3

Tints of #397CA3

Tones of #397CA3

Color harmonies

Complementary — #A26039:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #397CA3: #000000.

Semi-transparent (opacity) text on #397CA3

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 #397CA3 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 #397CA3 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

← #397CA2  ·  #397CA4 →

Frequently asked questions

What color is #397CA3?

#397CA3 is Muted Blue, a blue color (RGB 57, 124, 163). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #397CA3?

#397CA3 is RGB 57, 124, 163 — HSL 202°, 48%, 43% — CMYK 65%, 24%, 0%, 36%.

What colors go with #397CA3?

Its complement is #A26039; analogous partners are #39A294 and #3947A2. It also appears in 6+ palettes in our collection.

Can I use #397CA3 for text?

Black text on #397CA3 has a contrast ratio of 4.59:1 (passes WCAG AA); white text gives 4.58:1.