Palettes / Colors / #435151

#435151 — Stone Grey

#435151 is a gray color we call Stone Grey, 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 #435151 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.

#435151 is a neutral gray color associated with neutrality 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 #514343; it also sits naturally between #43514A and #434A51. 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 26% · Green 32% · Blue 32%

Cyan 17% · Magenta 0% · Yellow 0% · Key 68%

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

Previews

CSS code for #435151

.text { color: #435151; }
.background { background-color: #435151; }
.border { border: 3px solid #435151; }
.text-rgb { color: rgb(67, 81, 81); }
.text-hsl { color: hsl(180, 9%, 29%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #435151; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(67, 81, 81, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #435151; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(67, 81, 81, 0.8); }

HTML: <p style="color:#435151">Text here</p> · <div style="background-color:#435151">Div content here</div>

Shades of #435151

Tints of #435151

Tones of #435151

Color harmonies

Complementary — #514343:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #435151: #FFFFFF.

Semi-transparent (opacity) text on #435151

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 #435151 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 #435151 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

← #435150  ·  #435152 →

Frequently asked questions

What color is #435151?

#435151 is Stone Grey, a gray color (RGB 67, 81, 81). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #435151?

#435151 is RGB 67, 81, 81 — HSL 180°, 9%, 29% — CMYK 17%, 0%, 0%, 68%.

What colors go with #435151?

Its complement is #514343; analogous partners are #43514A and #434A51. It also appears in 6+ palettes in our collection.

Can I use #435151 for text?

White text on #435151 has a contrast ratio of 8.29:1 (passes WCAG AA); black text gives 2.53:1.