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Recognised as Colour

#AC2D2B

  • #AC2D2B
  • Red
  • Dark
  • Nearest: Brown

#AC2D2B is a red with RGB values 172, 45, 43 and HSL 1°, 60%, 42%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AC2D2B#AC2D2B
HEX#AC2D2B
RGBrgb(172, 45, 43)
RGB (0–1)0.6745, 0.1765, 0.1686
RGB percentages67.5%, 17.6%, 16.9%
HSLhsl(0.9, 60%, 42.2%)
HSV / HSBhsv(0.9, 75%, 67.5%)
CMYK0%, 73.8%, 75%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,283,755
CSS custom property--colour: #AC2D2B;

Brightness & contrast

Relative luminance0.10822WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.64:1
Contrast with white6.64:1WCAG normal text: AA
Contrast with black3.16:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#53D2D4

Colour vision & accessibility

Protanopia#534B29no red cones; affects about 1% of men; ΔE 54.6 from the original
Deuteranopia#726726no green cones; the most common form, about 1% of men; ΔE 55.4 from the original
Tritanopia#BD002Eno blue cones; rare, and affects men and women equally; ΔE 14 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.64:1WCAG large text: AAA
Contrast with black, large text3.16:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 2.76, a close match
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2BAAAC
Analogous#AC2B6A, #AC6E2B
Triadic#2BAC2D, #2D2BAC
Split complementary#2BAC6E, #2B69AC
Tetradic#69AC2B, #2BAAAC, #6E2BAC

Tints, shades & saturation

Lighter +40%#EDB7B6
Lighter +30%#E38F8D
Lighter +20%#D86665
Lighter +10%#CE3E3C
Darker −10%#832221
Darker −20%#5A1817
Darker −30%#320D0C
Darker −40%#090202
More saturated +25%#C71310
Less saturated −25%#914746

Channel breakdown

R172
G45
B43
Red172 (67.5%)
Green45 (17.6%)
Blue43 (16.9%)
Hue0.93°
Saturation (HSL)60%
Lightness42.16%
Dominant channelRed
Hex per channelR AC · G 2D · B 2B

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Every value on this page was computed from “ac2d2b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.