Palettes / Colors / #10102B

#10102B — Dark Muted Blue

#10102B is a blue color we call Dark Muted Blue, closest to the named color Black (#000000). It belongs to the blue family.

#10102B is a cool blue color associated with trust, calm and professionalism. It is deep enough for text, outlines and dark interface surfaces, and makes light colors glow next to it.

Its strongest partner is its complement #2D2D11; it also sits naturally between #111F2D and #1F112D. 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 6% · Green 6% · Blue 17%

Cyan 63% · Magenta 63% · Yellow 0% · Key 83%

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

Previews

CSS code for #10102B

.text { color: #10102B; }
.background { background-color: #10102B; }
.border { border: 3px solid #10102B; }
.text-rgb { color: rgb(16, 16, 43); }
.text-hsl { color: hsl(240, 46%, 12%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #10102B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(16, 16, 43, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #10102B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(16, 16, 43, 0.8); }

HTML: <p style="color:#10102B">Text here</p> · <div style="background-color:#10102B">Div content here</div>

Shades of #10102B

Tints of #10102B

Tones of #10102B

Color harmonies

Complementary — #2D2D11:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #10102B: #FFFFFF.

How #10102B 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 #10102B 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

← #10102A  ·  #10102C →

Frequently asked questions

What color is #10102B?

#10102B is Dark Muted Blue, a blue color (RGB 16, 16, 43). Its closest standard named color is Black.

What is the RGB and HSL of #10102B?

#10102B is RGB 16, 16, 43 — HSL 240°, 46%, 12% — CMYK 63%, 63%, 0%, 83%.

What colors go with #10102B?

Its complement is #2D2D11; analogous partners are #111F2D and #1F112D. It also appears in 6+ palettes in our collection.

Can I use #10102B for text?

White text on #10102B has a contrast ratio of 18.57:1 (passes WCAG AA); black text gives 1.13:1.