Recognised as Colour

#A72721

#A72721
Red
Dark
Nearest: Brown

#A72721 is a red with RGB values 167, 39, 33 and HSL 3°, 67%, 39%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A72721#A72721

HEX#A72721

RGBrgb(167, 39, 33)

RGB (0–1)0.6549, 0.1529, 0.1294

RGB percentages65.5%, 15.3%, 12.9%

HSLhsl(2.7, 67%, 39.2%)

HSV / HSBhsv(2.7, 80.2%, 65.5%)

CMYK0%, 76.6%, 80.2%, 34.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,954,529

CSS custom property--colour: #A72721;

Brightness & contrast

Relative luminance0.09776WCAG 2.x, 0 is black and 1 is white

Perceived brightness96.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.11:1

Contrast with white7.11:1WCAG normal text: AAA

Contrast with black2.96:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#58D8DE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4E461Fno red cones; affects about 1% of men; ΔE 55.3 from the original

Deuteranopia#6E621Bno green cones; the most common form, about 1% of men; ΔE 55.2 from the original

Tritanopia#B80027no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text7.11:1WCAG large text: AAA

Contrast with black, large text2.96:1WCAG large text: Fail

Named colours

Brown · ΔE 5.4 Firebrick · ΔE 5.5 Dark red · ΔE 10.8 Maroon · ΔE 12.5 Indian red · ΔE 21.9 Crimson · ΔE 22.2

Nearest named CSS colourBrown (#A52A2A)ΔE 5.42, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#21A1A7

Analogous#A7215E, #A76A21

Triadic#21A727, #2721A7

Split complementary#21A76A, #215EA7

Tetradic#5EA721, #21A1A7, #6A21A7

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#EEAAA6

Lighter +30%#E5817C

Lighter +20%#DD5851

Lighter +10%#D23129

Darker −10%#7C1D19

Darker −20%#521310

Darker −30%#270908

Darker −40%#000000

More saturated +25%#C01008

Less saturated −25%#8E3E3A

Channel breakdown

R167

G39

B33

Red167 (65.5%)

Green39 (15.3%)

Blue33 (12.9%)

Hue2.69°

Saturation (HSL)67%

Lightness39.22%

Dominant channelRed

Hex per channelR A7 · G 27 · B 21

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#A72721

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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