Palettes / Colors / #282931

#282931 — Charcoal

#282931 is a gray color we call Charcoal, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the gray family.

Color name

Closest CSS keyword: darkslategray (#2F4F4F) — not an exact match. CSS darkslategray gives you #2F4F4F, a different color; use #282931 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.

#282931 is a neutral gray color associated with neutrality 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 #302F27; it also sits naturally between #272C30 and #2A2730. 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 16% · Green 16% · Blue 19%

Cyan 18% · Magenta 16% · Yellow 0% · Key 81%

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

Previews

CSS code for #282931

.text { color: #282931; }
.background { background-color: #282931; }
.border { border: 3px solid #282931; }
.text-rgb { color: rgb(40, 41, 49); }
.text-hsl { color: hsl(233, 10%, 17%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #282931; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(40, 41, 49, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #282931; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(40, 41, 49, 0.8); }

HTML: <p style="color:#282931">Text here</p> · <div style="background-color:#282931">Div content here</div>

Shades of #282931

Tints of #282931

Tones of #282931

Color harmonies

Complementary — #302F27:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #282931: #FFFFFF.

Semi-transparent (opacity) text on #282931

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 #282931 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 #282931 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

← #282930  ·  #282932 →

Frequently asked questions

What color is #282931?

#282931 is Charcoal, a gray color (RGB 40, 41, 49). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #282931?

#282931 is RGB 40, 41, 49 — HSL 233°, 10%, 17% — CMYK 18%, 16%, 0%, 81%.

What colors go with #282931?

Its complement is #302F27; analogous partners are #272C30 and #2A2730. It also appears in 6+ palettes in our collection.

Can I use #282931 for text?

White text on #282931 has a contrast ratio of 14.47:1 (passes WCAG AA); black text gives 1.45:1.