Palettes / Colors / #37307F

#37307F — Muted Blue

#37307F is a blue color we call Muted Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.

#37307F 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 #777E30; it also sits naturally between #30507E and #5D307E. 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 19% · Blue 50%

Cyan 57% · Magenta 62% · Yellow 0% · Key 50%

Previews

CSS code for #37307F

.text { color: #37307F; }
.background { background-color: #37307F; }
.border { border: 3px solid #37307F; }
.text-rgb { color: rgb(55, 48, 127); }
.text-hsl { color: hsl(245, 45%, 34%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #37307F; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(55, 48, 127, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #37307F; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(55, 48, 127, 0.8); }

HTML: <p style="color:#37307F">Text here</p> · <div style="background-color:#37307F">Div content here</div>

Shades of #37307F

Tints of #37307F

Tones of #37307F

Color harmonies

Complementary — #777E30:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #37307F: #FFFFFF.

How #37307F 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 #37307F 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

← #37307E  ·  #373080 →

Frequently asked questions

What color is #37307F?

#37307F is Muted Blue, a blue color (RGB 55, 48, 127). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #37307F?

#37307F is RGB 55, 48, 127 — HSL 245°, 45%, 34% — CMYK 57%, 62%, 0%, 50%.

What colors go with #37307F?

Its complement is #777E30; analogous partners are #30507E and #5D307E. It also appears in 6+ palettes in our collection.

Can I use #37307F for text?

White text on #37307F has a contrast ratio of 11.10:1 (passes WCAG AA); black text gives 1.89:1.