Recognised as Colour

#A83740

#A83740
Red
Dark
Nearest: Brown

#A83740 is a red with RGB values 168, 55, 64 and HSL 355°, 51%, 44%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A83740#A83740

HEX#A83740

RGBrgb(168, 55, 64)

RGB (0–1)0.6588, 0.2157, 0.251

RGB percentages65.9%, 21.6%, 25.1%

HSLhsl(355.2, 50.7%, 43.7%)

HSV / HSBhsv(355.2, 67.3%, 65.9%)

CMYK0%, 67.3%, 61.9%, 34.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,024,192

CSS custom property--colour: #A83740;

Brightness & contrast

Relative luminance0.11427WCAG 2.x, 0 is black and 1 is white

Perceived brightness103.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.39:1

Contrast with white6.39:1WCAG normal text: AA

Contrast with black3.29:1WCAG normal text: Fail

Greyscale equivalent#505050

Inverted#57C8BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#545040no red cones; affects about 1% of men; ΔE 49.7 from the original

Deuteranopia#71683Dno green cones; the most common form, about 1% of men; ΔE 50.3 from the original

Tritanopia#B81D3Bno blue cones; rare, and affects men and women equally; ΔE 13.6 from the original

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

Contrast with white, large text6.39:1WCAG large text: AAA

Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Brown · ΔE 10.7 Indian red · ΔE 13.3 Firebrick · ΔE 19.4 Maroon · ΔE 22.9 Sienna · ΔE 23.3 Dark red · ΔE 24.4

Nearest named CSS colourBrown (#A52A2A)ΔE 10.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#37A89F

Analogous#A83778, #A86637

Triadic#40A837, #3740A8

Split complementary#37A867, #3778A8

Tetradic#79A837, #37A89F, #6737A8

Tints, shades & saturation

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

Lighter +40%#EBC0C4

Lighter +30%#DE9A9F

Lighter +20%#D1747B

Lighter +10%#C54D57

Darker −10%#822A31

Darker −20%#5B1E23

Darker −30%#351114

Darker −40%#0E0505

More saturated +25%#C41B29

Less saturated −25%#8C5357

Channel breakdown

R168

G55

B64

Red168 (65.9%)

Green55 (21.6%)

Blue64 (25.1%)

Hue355.22°

Saturation (HSL)50.67%

Lightness43.73%

Dominant channelRed

Hex per channelR A8 · G 37 · B 40

Keep nerding

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

#A83740

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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