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Recognised as Colour

#47182A

  • #47182A
  • Red
  • Dark
  • Nearest: Black

#47182A is a red with RGB values 71, 24, 42 and HSL 337°, 49%, 19%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#47182A#47182A
HEX#47182A
RGBrgb(71, 24, 42)
RGB (0–1)0.2784, 0.0941, 0.1647
RGB percentages27.8%, 9.4%, 16.5%
HSLhsl(337, 49.5%, 18.6%)
HSV / HSBhsv(337, 66.2%, 27.8%)
CMYK0%, 66.2%, 40.8%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,659,242
CSS custom property--colour: #47182A;

Brightness & contrast

Relative luminance0.0216WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.66:1
Contrast with white14.66:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#B8E7D5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#20232Bno red cones; affects about 1% of men; ΔE 24.4 from the original
Deuteranopia#2D2C29no green cones; the most common form, about 1% of men; ΔE 25 from the original
Tritanopia#4D141Fno blue cones; rare, and affects men and women equally; ΔE 8.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.66:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Black · ΔE 29.5Dim grey · ΔE 37.3Dark slate grey · ΔE 39.4Dark slateblue · ΔE 44Gray · ΔE 44.7Brown · ΔE 45.3
Nearest named CSS colourBlack (#000000)ΔE 29.5, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#184735
Analogous#471842, #471D18
Triadic#2A4718, #182A47
Split complementary#18471D, #184247
Tetradic#424718, #184735, #1E1847

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CA6189
Lighter +30%#B93F6E
Lighter +20%#933257
Lighter +10%#6D2541
Darker −10%#210B13
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#530C27
Less saturated −25%#3B242D

Channel breakdown

R71
G24
B42
Red71 (27.8%)
Green24 (9.4%)
Blue42 (16.5%)
Hue337.02°
Saturation (HSL)49.47%
Lightness18.63%
Dominant channelRed
Hex per channelR 47 · G 18 · B 2A

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Every value on this page was computed from “47182a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.