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Recognised as Colour

#AC4E57

  • #AC4E57
  • Red
  • Dark
  • Nearest: Indian red

#AC4E57 is a red with RGB values 172, 78, 87 and HSL 354°, 38%, 49%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AC4E57#AC4E57
HEX#AC4E57
RGBrgb(172, 78, 87)
RGB (0–1)0.6745, 0.3059, 0.3412
RGB percentages67.5%, 30.6%, 34.1%
HSLhsl(354.3, 37.6%, 49%)
HSV / HSBhsv(354.3, 54.7%, 67.5%)
CMYK0%, 54.7%, 49.4%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,292,247
CSS custom property--colour: #AC4E57;

Brightness & contrast

Relative luminance0.14908WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.27:1
Contrast with white5.27:1WCAG normal text: AA
Contrast with black3.98:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#53B1A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#636057no red cones; affects about 1% of men; ΔE 41 from the original
Deuteranopia#7A7355no green cones; the most common form, about 1% of men; ΔE 42 from the original
Tritanopia#BB4152no blue cones; rare, and affects men and women equally; ΔE 11.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.27:1WCAG large text: AAA
Contrast with black, large text3.98:1WCAG large text: AA

Named colours

Indian red · ΔE 12.9Pale violetred · ΔE 20.9Brown · ΔE 21.4Light coral · ΔE 21.8Sienna · ΔE 24.3Salmon · ΔE 27.4
Nearest named CSS colourIndian red (#CD5C5C)ΔE 12.86, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4EACA3
Analogous#AC4E86, #AC744E
Triadic#57AC4E, #4E57AC
Split complementary#4EAC74, #4E86AC
Tetradic#86AC4E, #4EACA3, #744EAC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EED8DA
Lighter +30%#DEB5B9
Lighter +20%#CE9298
Lighter +10%#BE6F77
Darker −10%#893E45
Darker −20%#662E34
Darker −30%#431E22
Darker −40%#200E10
More saturated +25%#CB2F3E
Less saturated −25%#8D6D70

Channel breakdown

R172
G78
B87
Red172 (67.5%)
Green78 (30.6%)
Blue87 (34.1%)
Hue354.26°
Saturation (HSL)37.6%
Lightness49.02%
Dominant channelRed
Hex per channelR AC · G 4E · B 57

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Every value on this page was computed from “ac4e57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.