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Recognised as Colour

#A3175D

  • #A3175D
  • Red
  • Dark
  • Nearest: Medium violet red

#A3175D is a red with RGB values 163, 23, 93 and HSL 330°, 75%, 36%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Medium violet red.

Colour values

#A3175D#A3175D
HEX#A3175D
RGBrgb(163, 23, 93)
RGB (0–1)0.6392, 0.0902, 0.3647
RGB percentages63.9%, 9%, 36.5%
HSLhsl(330, 75.3%, 36.5%)
HSV / HSBhsv(330, 85.9%, 63.9%)
CMYK0%, 85.9%, 42.9%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,688,349
CSS custom property--colour: #A3175D;

Brightness & contrast

Relative luminance0.0919WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.4:1
Contrast with white7.4:1WCAG normal text: AAA
Contrast with black2.84:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#5CE8A2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A455Fno red cones; affects about 1% of men; ΔE 57.3 from the original
Deuteranopia#605F5Ano green cones; the most common form, about 1% of men; ΔE 59.3 from the original
Tritanopia#B10039no blue cones; rare, and affects men and women equally; ΔE 25.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.4:1WCAG large text: AAA
Contrast with black, large text2.84:1WCAG large text: Fail

Named colours

Medium violet red · ΔE 19.3Pale violetred · ΔE 27.6Hot pink · ΔE 30.6Deep pink · ΔE 32.9Indian red · ΔE 33.5Purple · ΔE 33.7
Nearest named CSS colourMedium violet red (#C71585)ΔE 19.27, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#17A35D
Analogous#A317A3, #A31717
Triadic#5DA317, #175DA3
Split complementary#17A317, #17A3A3
Tetradic#A3A317, #17A35D, #1717A3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F096C3
Lighter +30%#EA69AA
Lighter +20%#E43C90
Lighter +10%#D01D76
Darker −10%#761144
Darker −20%#4A0A2A
Darker −30%#1D0410
Darker −40%#000000
More saturated +25%#BA005D
Less saturated −25%#8C2E5D

Channel breakdown

R163
G23
B93
Red163 (63.9%)
Green23 (9%)
Blue93 (36.5%)
Hue330°
Saturation (HSL)75.27%
Lightness36.47%
Dominant channelRed
Hex per channelR A3 · G 17 · B 5D

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Every value on this page was computed from “a3175d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.