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Recognised as Colour

#AA4B2F

  • #AA4B2F
  • Red
  • Dark
  • Nearest: Sienna

#AA4B2F is a red with RGB values 170, 75, 47 and HSL 14°, 57%, 43%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#AA4B2F#AA4B2F
HEX#AA4B2F
RGBrgb(170, 75, 47)
RGB (0–1)0.6667, 0.2941, 0.1843
RGB percentages66.7%, 29.4%, 18.4%
HSLhsl(13.7, 56.7%, 42.5%)
HSV / HSBhsv(13.7, 72.4%, 66.7%)
CMYK0%, 55.9%, 72.4%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,160,367
CSS custom property--colour: #AA4B2F;

Brightness & contrast

Relative luminance0.13783WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.4 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#5D5D5D
Inverted#55B4D0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#655B2Cno red cones; affects about 1% of men; ΔE 40.9 from the original
Deuteranopia#7C702Dno green cones; the most common form, about 1% of men; ΔE 41.5 from the original
Tritanopia#BB3745no blue cones; rare, and affects men and women equally; ΔE 20.4 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

Sienna · ΔE 7.8Saddle brown · ΔE 13.8Brown · ΔE 14.8Indian red · ΔE 17.8Firebrick · ΔE 19.5Maroon · ΔE 21.6
Nearest named CSS colourSienna (#A0522D)ΔE 7.84, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2F8EAA
Analogous#AA2F50, #AA882F
Triadic#2FAA4B, #4B2FAA
Split complementary#2FAA88, #2F51AA
Tetradic#51AA2F, #2F8EAA, #892FAA

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECC5B9
Lighter +30%#E1A391
Lighter +20%#D68269
Lighter +10%#CB6141
Darker −10%#823924
Darker −20%#5A2819
Darker −30%#32160E
Darker −40%#0A0403
More saturated +25%#C53C14
Less saturated −25%#8F5A4A

Channel breakdown

R170
G75
B47
Red170 (66.7%)
Green75 (29.4%)
Blue47 (18.4%)
Hue13.66°
Saturation (HSL)56.68%
Lightness42.55%
Dominant channelRed
Hex per channelR AA · G 4B · B 2F

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Every value on this page was computed from “aa4b2f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.