Recognised as Colour

#83373A

#83373A
Red
Dark
Nearest: Brown

#83373A is a red with RGB values 131, 55, 58 and HSL 358°, 41%, 36%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#83373A#83373A

HEX#83373A

RGBrgb(131, 55, 58)

RGB (0–1)0.5137, 0.2157, 0.2275

RGB percentages51.4%, 21.6%, 22.7%

HSLhsl(357.6, 40.9%, 36.5%)

HSV / HSBhsv(357.6, 58%, 51.4%)

CMYK0%, 58%, 55.7%, 48.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,599,354

CSS custom property--colour: #83373A;

Brightness & contrast

Relative luminance0.07863WCAG 2.x, 0 is black and 1 is white

Perceived brightness85.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.16:1

Contrast with white8.16:1WCAG normal text: AAA

Contrast with black2.57:1WCAG normal text: Fail

Greyscale equivalent#474747

Inverted#7CC8C5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#49453Ano red cones; affects about 1% of men; ΔE 34.5 from the original

Deuteranopia#5C5538no green cones; the most common form, about 1% of men; ΔE 35.3 from the original

Tritanopia#8F2B39no blue cones; rare, and affects men and women equally; ΔE 10 from the original

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

Contrast with white, large text8.16:1WCAG large text: AAA

Contrast with black, large text2.57:1WCAG large text: Fail

Named colours

Brown · ΔE 23.5 Sienna · ΔE 23.7 Indian red · ΔE 24.2 Saddle brown · ΔE 27.6 Maroon · ΔE 29.1 Dark red · ΔE 32.8

Nearest named CSS colourBrown (#A52A2A)ΔE 23.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#378380

Analogous#833760, #835A37

Triadic#3A8337, #373A83

Split complementary#37835A, #376083

Tetradic#608337, #378380, #5A3783

Tints, shades & saturation

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

Lighter +40%#DCAAAC

Lighter +30%#CC8789

Lighter +20%#BD6366

Lighter +10%#A7464A

Darker −10%#5F282A

Darker −20%#3B191A

Darker −30%#170A0A

Darker −40%#000000

More saturated +25%#9A2025

Less saturated −25%#6C4E4F

Channel breakdown

R131

G55

B58

Red131 (51.4%)

Green55 (21.6%)

Blue58 (22.7%)

Hue357.63°

Saturation (HSL)40.86%

Lightness36.47%

Dominant channelRed

Hex per channelR 83 · G 37 · B 3A

Keep nerding

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

#83373A

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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