Palettes / Colors / #646D64

#646D64 — Stone Grey

#646D64 is a gray color we call Stone Grey, closest to the named color DimGray (#696969). It belongs to the gray family.

Color name

Closest CSS keyword: dimgray (#696969) — not an exact match. CSS dimgray gives you #696969, a different color; use #646D64 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.

#646D64 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 #6D646D; it also sits naturally between #696D64 and #646D69. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 39% · Green 43% · Blue 39%

Cyan 8% · Magenta 0% · Yellow 8% · Key 57%

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

Previews

CSS code for #646D64

.text { color: #646D64; }
.background { background-color: #646D64; }
.border { border: 3px solid #646D64; }
.text-rgb { color: rgb(100, 109, 100); }
.text-hsl { color: hsl(120, 4%, 41%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #646D64; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(100, 109, 100, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #646D64; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(100, 109, 100, 0.8); }

HTML: <p style="color:#646D64">Text here</p> · <div style="background-color:#646D64">Div content here</div>

Shades of #646D64

Tints of #646D64

Tones of #646D64

Color harmonies

Complementary — #6D646D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #646D64: #FFFFFF.

Semi-transparent (opacity) text on #646D64

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 #646D64 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 #646D64 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

← #646D63  ·  #646D65 →

Frequently asked questions

What color is #646D64?

#646D64 is Stone Grey, a gray color (RGB 100, 109, 100). Its closest standard named color is DimGray.

What is the RGB and HSL of #646D64?

#646D64 is RGB 100, 109, 100 — HSL 120°, 4%, 41% — CMYK 8%, 0%, 8%, 57%.

What colors go with #646D64?

Its complement is #6D646D; analogous partners are #696D64 and #646D69. It also appears in 6+ palettes in our collection.

Can I use #646D64 for text?

White text on #646D64 has a contrast ratio of 5.37:1 (passes WCAG AA); black text gives 3.91:1.