Recognised as Colour
#BB0237
- #BB0237
- Red
- Dark
- Nearest: Crimson
#BB0237 is a red with RGB values 187, 2, 55 and HSL 343°, 98%, 37%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#BB0237#BB0237
HEX#BB0237
RGBrgb(187, 2, 55)
RGB (0–1)0.7333, 0.0078, 0.2157
RGB percentages73.3%, 0.8%, 21.6%
HSLhsl(342.8, 97.9%, 37.1%)
HSV / HSBhsv(342.8, 98.9%, 73.3%)
CMYK0%, 98.9%, 70.6%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,255,799
CSS custom property--colour: #BB0237;
Brightness & contrast
Relative luminance0.10884WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.61:1
Contrast with white6.61:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#44FDC8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.61:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#02BB86
Analogous#BB0293, #BB2A02
Triadic#37BB02, #0237BB
Split complementary#02BB2A, #0293BB
Tetradic#93BB02, #02BB86, #2A02BB
Tints, shades & saturation
Channel breakdown
R187
G2
B55
Red187 (73.3%)
Green2 (0.8%)
Blue55 (21.6%)
Hue342.81°
Saturation (HSL)97.88%
Lightness37.06%
Dominant channelRed
Hex per channelR BB · G 02 · B 37
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