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Recognised as Colour

#AA2E19

  • #AA2E19
  • Red
  • Dark
  • Nearest: Firebrick

#AA2E19 is a red with RGB values 170, 46, 25 and HSL 9°, 74%, 38%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AA2E19#AA2E19
HEX#AA2E19
RGBrgb(170, 46, 25)
RGB (0–1)0.6667, 0.1804, 0.098
RGB percentages66.7%, 18%, 9.8%
HSLhsl(8.7, 74.4%, 38.2%)
HSV / HSBhsv(8.7, 85.3%, 66.7%)
CMYK0%, 72.9%, 85.3%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,152,921
CSS custom property--colour: #AA2E19;

Brightness & contrast

Relative luminance0.1057WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.74:1
Contrast with white6.74:1WCAG normal text: AA
Contrast with black3.11:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#55D1E6

Colour vision & accessibility

Protanopia#544A15no red cones; affects about 1% of men; ΔE 53.4 from the original
Deuteranopia#726512no green cones; the most common form, about 1% of men; ΔE 53.6 from the original
Tritanopia#BC002Bno blue cones; rare, and affects men and women equally; ΔE 17.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.74:1WCAG large text: AAA
Contrast with black, large text3.11:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 7.72, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1995AA
Analogous#AA194C, #AA7619
Triadic#19AA2E, #2E19AA
Split complementary#19AA76, #194DAA
Tetradic#4DAA19, #1995AA, #7619AA

Tints, shades & saturation

Lighter +40%#F1AA9E
Lighter +30%#EA8372
Lighter +20%#E45C45
Lighter +10%#D63A20
Darker −10%#7E2212
Darker −20%#51160C
Darker −30%#250A05
Darker −40%#000000
More saturated +25%#C21D01
Less saturated −25%#923F31

Channel breakdown

R170
G46
B25
Red170 (66.7%)
Green46 (18%)
Blue25 (9.8%)
Hue8.69°
Saturation (HSL)74.36%
Lightness38.24%
Dominant channelRed
Hex per channelR AA · G 2E · B 19

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Every value on this page was computed from “aa2e19” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.