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Recognised as Colour

#AD4555

  • #AD4555
  • Red
  • Dark
  • Nearest: Indian red

#AD4555 is a red with RGB values 173, 69, 85 and HSL 351°, 43%, 47%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AD4555#AD4555
HEX#AD4555
RGBrgb(173, 69, 85)
RGB (0–1)0.6784, 0.2706, 0.3333
RGB percentages67.8%, 27.1%, 33.3%
HSLhsl(350.8, 43%, 47.5%)
HSV / HSBhsv(350.8, 60.1%, 67.8%)
CMYK0%, 60.1%, 50.9%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,355,477
CSS custom property--colour: #AD4555;

Brightness & contrast

Relative luminance0.13796WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.59:1
Contrast with white5.59:1WCAG normal text: AA
Contrast with black3.76:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#52BAAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5C5B55no red cones; affects about 1% of men; ΔE 46 from the original
Deuteranopia#777053no green cones; the most common form, about 1% of men; ΔE 46.5 from the original
Tritanopia#BC354Bno blue cones; rare, and affects men and women equally; ΔE 12.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.59:1WCAG large text: AAA
Contrast with black, large text3.76:1WCAG large text: AA

Named colours

Indian red · ΔE 13.4Brown · ΔE 19.9Pale violetred · ΔE 20.7Light coral · ΔE 23.3Sienna · ΔE 27.2Firebrick · ΔE 28.1
Nearest named CSS colourIndian red (#CD5C5C)ΔE 13.4, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#45AD9D
Analogous#AD4589, #AD6945
Triadic#55AD45, #4555AD
Split complementary#45AD69, #4589AD
Tetradic#89AD45, #45AD9D, #6945AD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDD1D5
Lighter +30%#DEADB4
Lighter +20%#D08893
Lighter +10%#C16472
Darker −10%#893643
Darker −20%#642831
Darker −30%#40191F
Darker −40%#1B0B0D
More saturated +25%#CB2740
Less saturated −25%#8F636A

Channel breakdown

R173
G69
B85
Red173 (67.8%)
Green69 (27.1%)
Blue85 (33.3%)
Hue350.77°
Saturation (HSL)42.98%
Lightness47.45%
Dominant channelRed
Hex per channelR AD · G 45 · B 55

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Every value on this page was computed from “ad4555” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.