#b21d1d - Siren Scarlet color

Deep, warm crimson with a slightly muted, earthy undertone—this red reads as a rich, classic scarlet that leans toward brick and burgundy rather than a bright cherry. It feels both dramatic and sophisticated, evoking vintage glamour, autumn foliage, and ripe pomegranate. Energetic and passionate without feeling neon, it works well as an accent in interiors, fashion, and branding, pairing beautifully with navy, tan, gold, or charcoal to convey confidence, warmth, and a timeless, slightly formal elegance.

color #b21d1d

#b21d1d color RGB value is 178, 29, 29, and the CMYK value is 0.00, 0.837, 0.837, 0.302. Alternative names for that color are: siren scarlet, brown, firebrick, tall poppy, mahogany, red.

Color Conversion

Name
Values
CSS
RGB(0-255)
178, 29, 29
rgb(178, 29, 29)
CMYK
0.00, 0.837, 0.837, 0.302
-
sRGB
0.698, 0.114, 0.114
rgb(69.8%, 11.4%, 11.4%)
Adobe® 98 RGB compatible
0.597, 0.135, 0.135
color(a98-rgb, 0.597, 0.135, 0.135)
HCT
24.5, 79.8, 38.6
color(--hct, 24.5, 55%, 38.6%)
HSL
0.00, 72.0, 40.6
hsl(0, 72%, 40.6%)
HSV
0.00, 83.7, 69.8
color(--hsv, 0, 83.7%, 69.8%)
HWB
0.00, 11.4, 30.2
hwb(0, 11.4%, 30.2%)
Lab
39.3, 57.7, 41.5
lab(39.3%, 57.7, 41.5)
P3
0.641, 0.178, 0.150
color(display-p3, 0.641, 0.178, 0.15)
XYZ D50
0.201, 0.109, 0.0162
color(xyz-d50, 0.201, 0.109, 0.016)

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Color Harmonies(lch)

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