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Recognised as Colour

#47373B

  • #47373B
  • Red
  • Dark
  • Nearest: Dark slate grey

#47373B is a red with RGB values 71, 55, 59 and HSL 345°, 13%, 25%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#47373B#47373B
HEX#47373B
RGBrgb(71, 55, 59)
RGB (0–1)0.2784, 0.2157, 0.2314
RGB percentages27.8%, 21.6%, 23.1%
HSLhsl(345, 12.7%, 24.7%)
HSV / HSBhsv(345, 22.5%, 27.8%)
CMYK0%, 22.5%, 16.9%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,667,195
CSS custom property--colour: #47373B;

Brightness & contrast

Relative luminance0.04388WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.18:1
Contrast with white11.18:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#B8C8C4

Colour vision & accessibility

Protanopia#39393Bno red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#3D3C3Bno green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#4A3638no blue cones; rare, and affects men and women equally; ΔE 2.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.18:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.96, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#374743
Analogous#473743, #473B37
Triadic#3B4737, #373B47
Split complementary#37473B, #374347
Tetradic#434737, #374743, #3B3747

Tints, shades & saturation

Lighter +40%#B09A9F
Lighter +30%#9A7D84
Lighter +20%#80646B
Lighter +10%#644D53
Darker −10%#2A2123
Darker −20%#0E0A0B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#572733
Less saturated −25%#3F3F3F

Channel breakdown

R71
G55
B59
Red71 (27.8%)
Green55 (21.6%)
Blue59 (23.1%)
Hue345°
Saturation (HSL)12.7%
Lightness24.71%
Dominant channelRed
Hex per channelR 47 · G 37 · B 3B

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Every value on this page was computed from “47373b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.