Palettes / Colors / #F03431
#F03431 — Vivid Red
#F03431 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 #F03431 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.
#F03431 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 #33EDF0; it also sits naturally between #F0338E and #F09433. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #F03431 |
|---|---|
| RGB | 240, 52, 49 |
| HSL | 1°, 86%, 57% |
| HSV | 1°, 80%, 94% |
| CMYK | 0%, 78%, 80%, 6% |
| XYZ | 37.72, 21.20, 5.01 |
| Yxy | 21.20, 0.5900, 0.3317 |
| CIE-Lab | 53.17, 69.28, 47.59 |
| Hunter Lab | 46.05, 69.17, 24.17 |
RGB & CMYK percentages
Red 94% · Green 20% · Blue 19%
Cyan 0% · Magenta 78% · Yellow 80% · Key 6%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
CSS code for #F03431
.text { color: #F03431; }
.background { background-color: #F03431; }
.border { border: 3px solid #F03431; }
.text-rgb { color: rgb(240, 52, 49); }
.text-hsl { color: hsl(1, 86%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #F03431; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(240, 52, 49, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #F03431; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(240, 52, 49, 0.8); }
HTML: <p style="color:#F03431">Text here</p> · <div style="background-color:#F03431">Div content here</div>
Shades of #F03431
Tints of #F03431
Tones of #F03431
Color harmonies
Complementary — #33EDF0:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.01:1 AA large only |
|---|---|
| Against black text | 5.24:1 AA |
Best text color on #F03431: #000000.
Semi-transparent (opacity) text on #F03431
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #F03431: ·
How #F03431 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 #F03431 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
Frequently asked questions
What color is #F03431?
#F03431 is Vivid Red, a red color (RGB 240, 52, 49). Its closest standard named color is Crimson.
What is the RGB and HSL of #F03431?
#F03431 is RGB 240, 52, 49 — HSL 1°, 86%, 57% — CMYK 0%, 78%, 80%, 6%.
What colors go with #F03431?
Its complement is #33EDF0; analogous partners are #F0338E and #F09433. It also appears in 6+ palettes in our collection.
Can I use #F03431 for text?
Black text on #F03431 has a contrast ratio of 5.24:1 (passes WCAG AA); white text gives 4.01:1.