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Recognised as Colour

#A4053A

  • #A4053A
  • Red
  • Dark
  • Nearest: Brown

#A4053A is a red with RGB values 164, 5, 58 and HSL 340°, 94%, 33%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A4053A#A4053A
HEX#A4053A
RGBrgb(164, 5, 58)
RGB (0–1)0.6431, 0.0196, 0.2275
RGB percentages64.3%, 2%, 22.7%
HSLhsl(340, 94.1%, 33.1%)
HSV / HSBhsv(340, 97%, 64.3%)
CMYK0%, 97%, 64.6%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,749,242
CSS custom property--colour: #A4053A;

Brightness & contrast

Relative luminance0.08307WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.89:1
Contrast with white7.89:1WCAG normal text: AAA
Contrast with black2.66:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#5BFAC5

Colour vision & accessibility

Protanopia#3F3E3Ano red cones; affects about 1% of men; ΔE 61.4 from the original
Deuteranopia#645C36no green cones; the most common form, about 1% of men; ΔE 61.9 from the original
Tritanopia#B40022no blue cones; rare, and affects men and women equally; ΔE 19.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.89:1WCAG large text: AAA
Contrast with black, large text2.66:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 16.63, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#05A46F
Analogous#A40589, #A42005
Triadic#3AA405, #053AA4
Split complementary#05A41F, #058AA4
Tetradic#8AA405, #05A46F, #2005A4

Tints, shades & saturation

Lighter +40%#FB7AA5
Lighter +30%#F94984
Lighter +20%#F81762
Lighter +10%#D5074C
Darker −10%#730328
Darker −20%#410217
Darker −30%#100005
Darker −40%#000000
More saturated +25%#A90038
Less saturated −25%#8F1A41

Channel breakdown

R164
G5
B58
Red164 (64.3%)
Green5 (2%)
Blue58 (22.7%)
Hue340°
Saturation (HSL)94.08%
Lightness33.14%
Dominant channelRed
Hex per channelR A4 · G 05 · B 3A

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Every value on this page was computed from “a4053a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.