Palettes / Colors / #C00A09

#C00A09 — Vivid Red

#C00A09 is a red color we call Vivid Red, closest to the named color FireBrick (#B22222). It belongs to the red family.

Color name

Closest CSS keyword: firebrick (#B22222) — not an exact match. CSS firebrick gives you #B22222, a different color; use #C00A09 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.

#C00A09 is a warm red color associated with energy, passion and urgency. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #09BEBE; it also sits naturally between #BE0963 and #BE6309. 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 75% · Green 4% · Blue 4%

Cyan 0% · Magenta 95% · Yellow 95% · Key 25%

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

Previews

CSS code for #C00A09

.text { color: #C00A09; }
.background { background-color: #C00A09; }
.border { border: 3px solid #C00A09; }
.text-rgb { color: rgb(192, 10, 9); }
.text-hsl { color: hsl(0, 91%, 39%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #C00A09; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(192, 10, 9, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #C00A09; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(192, 10, 9, 0.8); }

HTML: <p style="color:#C00A09">Text here</p> · <div style="background-color:#C00A09">Div content here</div>

Shades of #C00A09

Tints of #C00A09

Tones of #C00A09

Color harmonies

Complementary — #09BEBE:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #C00A09: #FFFFFF.

Semi-transparent (opacity) text on #C00A09

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 #C00A09 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 #C00A09 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

← #C00A08  ·  #C00A0A →

Frequently asked questions

What color is #C00A09?

#C00A09 is Vivid Red, a red color (RGB 192, 10, 9). Its closest standard named color is FireBrick.

What is the RGB and HSL of #C00A09?

#C00A09 is RGB 192, 10, 9 — HSL 0°, 91%, 39% — CMYK 0%, 95%, 95%, 25%.

What colors go with #C00A09?

Its complement is #09BEBE; analogous partners are #BE0963 and #BE6309. It also appears in 6+ palettes in our collection.

Can I use #C00A09 for text?

White text on #C00A09 has a contrast ratio of 6.39:1 (passes WCAG AA); black text gives 3.29:1.