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Recognised as Colour

#A71428

  • #A71428
  • Red
  • Dark
  • Nearest: Brown

#A71428 is a red with RGB values 167, 20, 40 and HSL 352°, 79%, 37%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A71428#A71428
HEX#A71428
RGBrgb(167, 20, 40)
RGB (0–1)0.6549, 0.0784, 0.1569
RGB percentages65.5%, 7.8%, 15.7%
HSLhsl(351.8, 78.6%, 36.7%)
HSV / HSBhsv(351.8, 88%, 65.5%)
CMYK0%, 88%, 76%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,949,672
CSS custom property--colour: #A71428;

Brightness & contrast

Relative luminance0.08869WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.57:1
Contrast with white7.57:1WCAG normal text: AAA
Contrast with black2.77:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#58EBD7

Colour vision & accessibility

Protanopia#464027no red cones; affects about 1% of men; ΔE 60.3 from the original
Deuteranopia#6A5F22no green cones; the most common form, about 1% of men; ΔE 60.4 from the original
Tritanopia#B8001Eno blue cones; rare, and affects men and women equally; ΔE 12.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.57:1WCAG large text: AAA
Contrast with black, large text2.77:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 6.91, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#14A793
Analogous#A71471, #A74914
Triadic#28A714, #1428A7
Split complementary#14A74A, #1471A7
Tetradic#72A714, #14A793, #4A14A7

Tints, shades & saturation

Lighter +40%#F295A1
Lighter +30%#ED6779
Lighter +20%#E73A51
Lighter +10%#D51933
Darker −10%#790F1D
Darker −20%#4C0912
Darker −30%#1E0407
Darker −40%#000000
More saturated +25%#BB0019
Less saturated −25%#902B39

Channel breakdown

R167
G20
B40
Red167 (65.5%)
Green20 (7.8%)
Blue40 (15.7%)
Hue351.84°
Saturation (HSL)78.61%
Lightness36.67%
Dominant channelRed
Hex per channelR A7 · G 14 · B 28

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Every value on this page was computed from “a71428” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.