Colour

#BB0038

#BB0038
Red
Dark
Nearest: Crimson

#BB0038 is a red with RGB values 187, 0, 56 and HSL 342°, 100%, 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

#BB0038#BB0038

HEX#BB0038

RGBrgb(187, 0, 56)

RGB (0–1)0.7333, 0, 0.2196

RGB percentages73.3%, 0%, 22%

HSLhsl(342, 100%, 36.7%)

HSV / HSBhsv(342, 100%, 73.3%)

CMYK0%, 100%, 70.1%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,255,288

CSS custom property--colour: #BB0038;

Brightness & contrast

Relative luminance0.1085WCAG 2.x, 0 is black and 1 is white

Perceived brightness104 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.62:1

Contrast with white6.62:1WCAG normal text: AA

Contrast with black3.17:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#44FFC7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4A4638no red cones; affects about 1% of men; ΔE 68.4 from the original

Deuteranopia#746932no green cones; the most common form, about 1% of men; ΔE 68.7 from the original

Tritanopia#CE0020no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.62:1WCAG large text: AAA

Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Crimson · ΔE 13 Firebrick · ΔE 15.3 Brown · ΔE 16.1 Dark red · ΔE 24 Indian red · ΔE 24.6 Maroon · ΔE 25.2

Nearest named CSS colourCrimson (#DC143C)ΔE 12.98, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#00BB83

Analogous#BB0096, #BB2500

Triadic#38BB00, #0038BB

Split complementary#00BB25, #0096BB

Tetradic#96BB00, #00BB83, #2500BB

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF88AC

Lighter +30%#FF5588

Lighter +20%#FF2264

Lighter +10%#EE0047

Darker −10%#880029

Darker −20%#550019

Darker −30%#22000A

Darker −40%#000000

More saturated +25%#BB0038

Less saturated −25%#A41741

Channel breakdown

R187

B56

Red187 (73.3%)

Green0 (0%)

Blue56 (22%)

Hue342.03°

Saturation (HSL)100%

Lightness36.67%

Dominant channelRed

Hex per channelR BB · G 00 · B 38

Keep nerding

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#BB0038

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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