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Colour

#AA6644

  • #AA6644
  • Orange
  • Dark
  • Nearest: Sienna

#AA6644 is a orange with RGB values 170, 102, 68 and HSL 20°, 43%, 47%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#AA6644#AA6644
HEX#AA6644
HEX (short)#A64
RGBrgb(170, 102, 68)
RGB (0–1)0.6667, 0.4, 0.2667
RGB percentages66.7%, 40%, 26.7%
HSLhsl(20, 42.9%, 46.7%)
HSV / HSBhsv(20, 60%, 66.7%)
CMYK0%, 40%, 60%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,167,300
CSS custom property--colour: #AA6644;

Brightness & contrast

Relative luminance0.18466WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.69:1
Contrast with white4.47:1WCAG normal text: Fail
Contrast with black4.69:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#5599BB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#786E41no red cones; affects about 1% of men; ΔE 27.5 from the original
Deuteranopia#897D43no green cones; the most common form, about 1% of men; ΔE 27.9 from the original
Tritanopia#B9595Eno blue cones; rare, and affects men and women equally; ΔE 21.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.47:1WCAG large text: AA
Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Sienna · ΔE 9.6Saddle brown · ΔE 16.5Dark salmon · ΔE 20.4Peru · ΔE 21Indian red · ΔE 22.8Light salmon · ΔE 26.1
Nearest named CSS colourSienna (#A0522D)ΔE 9.62, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4488AA
Analogous#AA4455, #AA9944
Triadic#44AA66, #6644AA
Split complementary#44AA99, #4455AA
Tetradic#55AA44, #4488AA, #9944AA

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECD8CE
Lighter +30%#DDBBAA
Lighter +20%#CE9E86
Lighter +10%#C08161
Darker −10%#865035
Darker −20%#613A27
Darker −30%#3D2418
Darker −40%#180F0A
More saturated +25%#C85C26
Less saturated −25%#8C7062

Channel breakdown

R170
G102
B68
Red170 (66.7%)
Green102 (40%)
Blue68 (26.7%)
Hue20°
Saturation (HSL)42.86%
Lightness46.67%
Dominant channelRed
Hex per channelR AA · G 66 · B 44

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Every value on this page was computed from “aa6644” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.