Colour

#83373B

#83373B
Red
Dark
Nearest: Brown

#83373B is a red with RGB values 131, 55, 59 and HSL 357°, 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

#83373B#83373B

HEX#83373B

RGBrgb(131, 55, 59)

RGB (0–1)0.5137, 0.2157, 0.2314

RGB percentages51.4%, 21.6%, 23.1%

HSLhsl(356.8, 40.9%, 36.5%)

HSV / HSBhsv(356.8, 58%, 51.4%)

CMYK0%, 58%, 55%, 48.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,599,355

CSS custom property--colour: #83373B;

Brightness & contrast

Relative luminance0.07873WCAG 2.x, 0 is black and 1 is white

Perceived brightness85.5 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#7CC8C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

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

Deuteranopia#5C5539no 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 23.8 Sienna · ΔE 24.3 Indian red · ΔE 24.3 Saddle brown · ΔE 28.2 Maroon · ΔE 29.6 Pale violetred · ΔE 32.5

Nearest named CSS colourBrown (#A52A2A)ΔE 23.83, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#37837F

Analogous#833761, #835937

Triadic#3B8337, #373B83

Split complementary#378359, #376183

Tetradic#618337, #37837F, #593783

Tints, shades & saturation

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

Lighter +40%#DCAAAD

Lighter +30%#CC878A

Lighter +20%#BD6367

Lighter +10%#A7464B

Darker −10%#5F282B

Darker −20%#3B191B

Darker −30%#170A0A

Darker −40%#000000

More saturated +25%#9A2026

Less saturated −25%#6C4E50

Channel breakdown

R131

G55

B59

Red131 (51.4%)

Green55 (21.6%)

Blue59 (23.1%)

Hue356.84°

Saturation (HSL)40.86%

Lightness36.47%

Dominant channelRed

Hex per channelR 83 · G 37 · B 3B

Keep nerding

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

#83373B

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

Nerdulate something else