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Recognised as Colour

#AB3428

  • #AB3428
  • Red
  • Dark
  • Nearest: Brown

#AB3428 is a red with RGB values 171, 52, 40 and HSL 5°, 62%, 41%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AB3428#AB3428
HEX#AB3428
RGBrgb(171, 52, 40)
RGB (0–1)0.6706, 0.2039, 0.1569
RGB percentages67.1%, 20.4%, 15.7%
HSLhsl(5.5, 62.1%, 41.4%)
HSV / HSBhsv(5.5, 76.6%, 67.1%)
CMYK0%, 69.6%, 76.6%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,220,008
CSS custom property--colour: #AB3428;

Brightness & contrast

Relative luminance0.11267WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.45:1
Contrast with white6.45:1WCAG normal text: AA
Contrast with black3.25:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#54CBD7

Colour vision & accessibility

Protanopia#564E26no red cones; affects about 1% of men; ΔE 52 from the original
Deuteranopia#746823no green cones; the most common form, about 1% of men; ΔE 52.1 from the original
Tritanopia#BC0A32no blue cones; rare, and affects men and women equally; ΔE 16.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.45:1WCAG large text: AAA
Contrast with black, large text3.25:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 5.3, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#289FAB
Analogous#AB285E, #AB7628
Triadic#28AB34, #3428AB
Split complementary#28AB76, #285DAB
Tetradic#5DAB28, #289FAB, #7628AB

Tints, shades & saturation

Lighter +40%#EDB7B2
Lighter +30%#E39189
Lighter +20%#DA6B5F
Lighter +10%#D04436
Darker −10%#82271E
Darker −20%#581B15
Darker −30%#2F0E0B
Darker −40%#060201
More saturated +25%#C51E0E
Less saturated −25%#914A42

Channel breakdown

R171
G52
B40
Red171 (67.1%)
Green52 (20.4%)
Blue40 (15.7%)
Hue5.5°
Saturation (HSL)62.09%
Lightness41.37%
Dominant channelRed
Hex per channelR AB · G 34 · B 28

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Every value on this page was computed from “ab3428” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.