Palettes / Colors / #BB231B

#BB231B — Red

#BB231B 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 #BB231B 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.

#BB231B 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 #1BB3BB; it also sits naturally between #BB1B63 and #BB731B. 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 73% · Green 14% · Blue 11%

Cyan 0% · Magenta 81% · Yellow 86% · Key 27%

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

Previews

CSS code for #BB231B

.text { color: #BB231B; }
.background { background-color: #BB231B; }
.border { border: 3px solid #BB231B; }
.text-rgb { color: rgb(187, 35, 27); }
.text-hsl { color: hsl(3, 75%, 42%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #BB231B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(187, 35, 27, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #BB231B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(187, 35, 27, 0.8); }

HTML: <p style="color:#BB231B">Text here</p> · <div style="background-color:#BB231B">Div content here</div>

Shades of #BB231B

Tints of #BB231B

Tones of #BB231B

Color harmonies

Complementary — #1BB3BB:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #BB231B: #FFFFFF.

Semi-transparent (opacity) text on #BB231B

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 #BB231B 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 #BB231B 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

← #BB231A  ·  #BB231C →

Frequently asked questions

What color is #BB231B?

#BB231B is Red, a red color (RGB 187, 35, 27). Its closest standard named color is FireBrick.

What is the RGB and HSL of #BB231B?

#BB231B is RGB 187, 35, 27 — HSL 3°, 75%, 42% — CMYK 0%, 81%, 86%, 27%.

What colors go with #BB231B?

Its complement is #1BB3BB; analogous partners are #BB1B63 and #BB731B. It also appears in 6+ palettes in our collection.

Can I use #BB231B for text?

White text on #BB231B has a contrast ratio of 6.23:1 (passes WCAG AA); black text gives 3.37:1.