Palettes / Colors / #A31C19

#A31C19 — Red

#A31C19 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 #A31C19 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.

#A31C19 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 #19A1A3; it also sits naturally between #A3195C and #A36119. 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 64% · Green 11% · Blue 10%

Cyan 0% · Magenta 83% · Yellow 85% · Key 36%

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

Previews

CSS code for #A31C19

.text { color: #A31C19; }
.background { background-color: #A31C19; }
.border { border: 3px solid #A31C19; }
.text-rgb { color: rgb(163, 28, 25); }
.text-hsl { color: hsl(1, 73%, 37%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #A31C19; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(163, 28, 25, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #A31C19; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(163, 28, 25, 0.8); }

HTML: <p style="color:#A31C19">Text here</p> · <div style="background-color:#A31C19">Div content here</div>

Shades of #A31C19

Tints of #A31C19

Tones of #A31C19

Color harmonies

Complementary — #19A1A3:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #A31C19: #FFFFFF.

Semi-transparent (opacity) text on #A31C19

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 #A31C19 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 #A31C19 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

← #A31C18  ·  #A31C1A →

Frequently asked questions

What color is #A31C19?

#A31C19 is Red, a red color (RGB 163, 28, 25). Its closest standard named color is FireBrick.

What is the RGB and HSL of #A31C19?

#A31C19 is RGB 163, 28, 25 — HSL 1°, 73%, 37% — CMYK 0%, 83%, 85%, 36%.

What colors go with #A31C19?

Its complement is #19A1A3; analogous partners are #A3195C and #A36119. It also appears in 6+ palettes in our collection.

Can I use #A31C19 for text?

White text on #A31C19 has a contrast ratio of 7.67:1 (passes WCAG AA); black text gives 2.74:1.