Palettes / Colors / #FF243C

#FF243C — Vivid Red

#FF243C is a red color we call Vivid Red, closest to the named color Crimson (#DC143C). It belongs to the red family.

Color name

Closest CSS keyword: crimson (#DC143C) — not an exact match. CSS crimson gives you #DC143C, a different color; use #FF243C 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.

#FF243C 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 #24FFE5; it also sits naturally between #FF24AB and #FF7824. 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 100% · Green 14% · Blue 24%

Cyan 0% · Magenta 86% · Yellow 76% · Key 0%

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

Previews

CSS code for #FF243C

.text { color: #FF243C; }
.background { background-color: #FF243C; }
.border { border: 3px solid #FF243C; }
.text-rgb { color: rgb(255, 36, 60); }
.text-hsl { color: hsl(353, 100%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #FF243C; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(255, 36, 60, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #FF243C; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(255, 36, 60, 0.8); }

HTML: <p style="color:#FF243C">Text here</p> · <div style="background-color:#FF243C">Div content here</div>

Shades of #FF243C

Tints of #FF243C

Tones of #FF243C

Color harmonies

Complementary — #24FFE5:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #FF243C: #000000.

Semi-transparent (opacity) text on #FF243C

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 #FF243C 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 #FF243C 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

← #FF243B  ·  #FF243D →

Frequently asked questions

What color is #FF243C?

#FF243C is Vivid Red, a red color (RGB 255, 36, 60). Its closest standard named color is Crimson.

What is the RGB and HSL of #FF243C?

#FF243C is RGB 255, 36, 60 — HSL 353°, 100%, 57% — CMYK 0%, 86%, 76%, 0%.

What colors go with #FF243C?

Its complement is #24FFE5; analogous partners are #FF24AB and #FF7824. It also appears in 6+ palettes in our collection.

Can I use #FF243C for text?

Black text on #FF243C has a contrast ratio of 5.57:1 (passes WCAG AA); white text gives 3.77:1.