Palettes / Colors / #FF3729

#FF3729 — Vivid Red

#FF3729 is a red color we call Vivid Red, closest to the named color OrangeRed (#FF4500). It belongs to the red family.

Color name

Closest CSS keyword: orangered (#FF4500) — not an exact match. CSS orangered gives you #FF4500, a different color; use #FF3729 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.

#FF3729 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 #29F1FF; it also sits naturally between #FF2986 and #FFA229. 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 100% · Green 22% · Blue 16%

Cyan 0% · Magenta 78% · Yellow 84% · Key 0%

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

Previews

CSS code for #FF3729

.text { color: #FF3729; }
.background { background-color: #FF3729; }
.border { border: 3px solid #FF3729; }
.text-rgb { color: rgb(255, 55, 41); }
.text-hsl { color: hsl(4, 100%, 58%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #FF3729; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(255, 55, 41, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #FF3729; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(255, 55, 41, 0.8); }

HTML: <p style="color:#FF3729">Text here</p> · <div style="background-color:#FF3729">Div content here</div>

Shades of #FF3729

Tints of #FF3729

Tones of #FF3729

Color harmonies

Complementary — #29F1FF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #FF3729: #000000.

Semi-transparent (opacity) text on #FF3729

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 #FF3729 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 #FF3729 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

← #FF3728  ·  #FF372A →

Frequently asked questions

What color is #FF3729?

#FF3729 is Vivid Red, a red color (RGB 255, 55, 41). Its closest standard named color is OrangeRed.

What is the RGB and HSL of #FF3729?

#FF3729 is RGB 255, 55, 41 — HSL 4°, 100%, 58% — CMYK 0%, 78%, 84%, 0%.

What colors go with #FF3729?

Its complement is #29F1FF; analogous partners are #FF2986 and #FFA229. It also appears in 6+ palettes in our collection.

Can I use #FF3729 for text?

Black text on #FF3729 has a contrast ratio of 5.83:1 (passes WCAG AA); white text gives 3.60:1.