Palettes / Colors / #C03633

#C03633 — Red

#C03633 is a red color we call 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 #C03633 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.

#C03633 is a warm red color associated with energy, passion and urgency. 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 #33BFC1; it also sits naturally between #C13378 and #C17D33. 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 21% · Blue 20%

Cyan 0% · Magenta 72% · Yellow 73% · Key 25%

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

Previews

CSS code for #C03633

.text { color: #C03633; }
.background { background-color: #C03633; }
.border { border: 3px solid #C03633; }
.text-rgb { color: rgb(192, 54, 51); }
.text-hsl { color: hsl(1, 58%, 48%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #C03633; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(192, 54, 51, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #C03633; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(192, 54, 51, 0.8); }

HTML: <p style="color:#C03633">Text here</p> · <div style="background-color:#C03633">Div content here</div>

Shades of #C03633

Tints of #C03633

Tones of #C03633

Color harmonies

Complementary — #33BFC1:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #C03633: #FFFFFF.

Semi-transparent (opacity) text on #C03633

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 #C03633 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 #C03633 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

← #C03632  ·  #C03634 →

Frequently asked questions

What color is #C03633?

#C03633 is Red, a red color (RGB 192, 54, 51). Its closest standard named color is FireBrick.

What is the RGB and HSL of #C03633?

#C03633 is RGB 192, 54, 51 — HSL 1°, 58%, 48% — CMYK 0%, 72%, 73%, 25%.

What colors go with #C03633?

Its complement is #33BFC1; analogous partners are #C13378 and #C17D33. It also appears in 6+ palettes in our collection.

Can I use #C03633 for text?

White text on #C03633 has a contrast ratio of 5.50:1 (passes WCAG AA); black text gives 3.82:1.