Palettes / Colors / #40331B

#40331B — Deep Muted Orange

#40331B is a orange color we call Deep Muted Orange, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the orange family.

Color name

Closest CSS keyword: darkslategray (#2F4F4F) — not an exact match. CSS darkslategray gives you #2F4F4F, a different color; use #40331B 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.

#40331B is a warm orange color associated with warmth, appetite and friendliness. 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 #1B2841; it also sits naturally between #41211B and #3B411B. 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 25% · Green 20% · Blue 11%

Cyan 0% · Magenta 20% · Yellow 58% · Key 75%

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

Previews

CSS code for #40331B

.text { color: #40331B; }
.background { background-color: #40331B; }
.border { border: 3px solid #40331B; }
.text-rgb { color: rgb(64, 51, 27); }
.text-hsl { color: hsl(39, 41%, 18%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #40331B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(64, 51, 27, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #40331B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(64, 51, 27, 0.8); }

HTML: <p style="color:#40331B">Text here</p> · <div style="background-color:#40331B">Div content here</div>

Shades of #40331B

Tints of #40331B

Tones of #40331B

Color harmonies

Complementary — #1B2841:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #40331B: #FFFFFF.

Semi-transparent (opacity) text on #40331B

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 #40331B 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 #40331B 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

← #40331A  ·  #40331C →

Frequently asked questions

What color is #40331B?

#40331B is Deep Muted Orange, a orange color (RGB 64, 51, 27). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #40331B?

#40331B is RGB 64, 51, 27 — HSL 39°, 41%, 18% — CMYK 0%, 20%, 58%, 75%.

What colors go with #40331B?

Its complement is #1B2841; analogous partners are #41211B and #3B411B. It also appears in 6+ palettes in our collection.

Can I use #40331B for text?

White text on #40331B has a contrast ratio of 12.30:1 (passes WCAG AA); black text gives 1.71:1.