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Colour

#AA1928

  • #AA1928
  • Red
  • Dark
  • Nearest: Brown

#AA1928 is a red with RGB values 170, 25, 40 and HSL 354°, 74%, 38%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#AA1928#AA1928
HEX#AA1928
RGBrgb(170, 25, 40)
RGB (0–1)0.6667, 0.098, 0.1569
RGB percentages66.7%, 9.8%, 15.7%
HSLhsl(353.8, 74.4%, 38.2%)
HSV / HSBhsv(353.8, 85.3%, 66.7%)
CMYK0%, 85.3%, 76.5%, 33.3%naive device-independent conversion; real print needs an ICC profile
24-bit integer11,147,560
CSS custom property--colour: #AA1928;

Brightness & contrast

Relative luminance0.09395WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.29:1
Contrast with white7.29:1WCAG normal text: AAA
Contrast with black2.88:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#55E6D7

Colour vision & accessibility

Protanopia#494327no red cones; affects about 1% of men; ΔE 60.4 from the original
Deuteranopia#6C6122no green cones; the most common form, about 1% of men; ΔE 60.3 from the original
Tritanopia#BC0021no blue cones; rare, and affects men and women equally; ΔE 11.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.29:1WCAG large text: AAA
Contrast with black, large text2.88:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 6.48, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#19AA9B
Analogous#AA1971, #AA5319
Triadic#28AA19, #1928AA
Split complementary#19AA52, #1971AA
Tetradic#70AA19, #19AA9B, #5219AA

Tints, shades & saturation

Lighter +40%#F19EA7
Lighter +30%#EA727E
Lighter +20%#E44556
Lighter +10%#D62032
Darker −10%#7E121E
Darker −20%#510C13
Darker −30%#250509
Darker −40%#000000
More saturated +25%#C20115
Less saturated −25%#92313B

Channel breakdown

R170
G25
B40
Red170 (66.7%)
Green25 (9.8%)
Blue40 (15.7%)
Hue353.79°
Saturation (HSL)74.36%
Lightness38.24%
Dominant channelRed
Hex per channelR AA · G 19 · B 28

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Every value on this page was computed from “aa1928” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.