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Recognised as Colour

#83153A

  • #83153A
  • Red
  • Dark
  • Nearest: Brown

#83153A is a red with RGB values 131, 21, 58 and HSL 340°, 72%, 30%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#83153A#83153A
HEX#83153A
RGBrgb(131, 21, 58)
RGB (0–1)0.5137, 0.0824, 0.2275
RGB percentages51.4%, 8.2%, 22.7%
HSLhsl(339.8, 72.4%, 29.8%)
HSV / HSBhsv(339.8, 84%, 51.4%)
CMYK0%, 84%, 55.7%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,590,650
CSS custom property--colour: #83153A;

Brightness & contrast

Relative luminance0.05667WCAG 2.x, 0 is black and 1 is white
Perceived brightness76 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.84:1
Contrast with white9.84:1WCAG normal text: AAA
Contrast with black2.13:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#7CEAC5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#34353Bno red cones; affects about 1% of men; ΔE 47.8 from the original
Deuteranopia#504B37no green cones; the most common form, about 1% of men; ΔE 49 from the original
Tritanopia#900026no blue cones; rare, and affects men and women equally; ΔE 16.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.84:1WCAG large text: AAA
Contrast with black, large text2.13:1WCAG large text: Fail

Named colours

Brown · ΔE 24.9Indian red · ΔE 28.9Maroon · ΔE 30.8Pale violetred · ΔE 32.8Firebrick · ΔE 33.2Dark red · ΔE 34.1
Nearest named CSS colourBrown (#A52A2A)ΔE 24.93, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#15835E
Analogous#831571, #832715
Triadic#3A8315, #153A83
Split complementary#158327, #157183
Tetradic#718315, #15835E, #271583

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EA7AA0
Lighter +30%#E34E80
Lighter +20%#DB2361
Lighter +10%#AF1C4D
Darker −10%#570E27
Darker −20%#2B0713
Darker −30%#000000
Darker −40%#000000
More saturated +25%#960234
Less saturated −25%#702840

Channel breakdown

R131
G21
B58
Red131 (51.4%)
Green21 (8.2%)
Blue58 (22.7%)
Hue339.82°
Saturation (HSL)72.37%
Lightness29.8%
Dominant channelRed
Hex per channelR 83 · G 15 · B 3A

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Every value on this page was computed from “83153a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.