Palettes / Colors / #B2100A

#B2100A — Vivid Red

#B2100A is a red color we call Vivid 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 #B2100A 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.

#B2100A 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 #0AADB2; it also sits naturally between #B20A59 and #B2640A. 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 70% · Green 6% · Blue 4%

Cyan 0% · Magenta 91% · Yellow 94% · Key 30%

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

Previews

CSS code for #B2100A

.text { color: #B2100A; }
.background { background-color: #B2100A; }
.border { border: 3px solid #B2100A; }
.text-rgb { color: rgb(178, 16, 10); }
.text-hsl { color: hsl(2, 89%, 37%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #B2100A; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(178, 16, 10, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #B2100A; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(178, 16, 10, 0.8); }

HTML: <p style="color:#B2100A">Text here</p> · <div style="background-color:#B2100A">Div content here</div>

Shades of #B2100A

Tints of #B2100A

Tones of #B2100A

Color harmonies

Complementary — #0AADB2:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #B2100A: #FFFFFF.

Semi-transparent (opacity) text on #B2100A

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 #B2100A 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 #B2100A 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

← #B21009  ·  #B2100B →

Frequently asked questions

What color is #B2100A?

#B2100A is Vivid Red, a red color (RGB 178, 16, 10). Its closest standard named color is FireBrick.

What is the RGB and HSL of #B2100A?

#B2100A is RGB 178, 16, 10 — HSL 2°, 89%, 37% — CMYK 0%, 91%, 94%, 30%.

What colors go with #B2100A?

Its complement is #0AADB2; analogous partners are #B20A59 and #B2640A. It also appears in 6+ palettes in our collection.

Can I use #B2100A for text?

White text on #B2100A has a contrast ratio of 7.07:1 (passes WCAG AA); black text gives 2.97:1.