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Recognised as Colour

#B0573B

  • #B0573B
  • Red
  • Dark
  • Nearest: Sienna

#B0573B is a red with RGB values 176, 87, 59 and HSL 14°, 50%, 46%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#B0573B#B0573B
HEX#B0573B
RGBrgb(176, 87, 59)
RGB (0–1)0.6902, 0.3412, 0.2314
RGB percentages69%, 34.1%, 23.1%
HSLhsl(14.4, 49.8%, 46.1%)
HSV / HSBhsv(14.4, 66.5%, 69%)
CMYK0%, 50.6%, 66.5%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,556,667
CSS custom property--colour: #B0573B;

Brightness & contrast

Relative luminance0.16362WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.92:1
Contrast with white4.92:1WCAG normal text: AA
Contrast with black4.27:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#4FA8C4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6F6538no red cones; affects about 1% of men; ΔE 37.6 from the original
Deuteranopia#847839no green cones; the most common form, about 1% of men; ΔE 38.2 from the original
Tritanopia#C04650no blue cones; rare, and affects men and women equally; ΔE 19.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.92:1WCAG large text: AAA
Contrast with black, large text4.27:1WCAG large text: AA

Named colours

Sienna · ΔE 6.6Saddle brown · ΔE 15Indian red · ΔE 16.3Brown · ΔE 18.7Salmon · ΔE 23.1Dark salmon · ΔE 23.7
Nearest named CSS colourSienna (#A0522D)ΔE 6.6, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B94B0
Analogous#B03B5A, #B0923B
Triadic#3BB057, #573BB0
Split complementary#3BB092, #3B5AB0
Tetradic#5AB03B, #3B94B0, #923BB0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDD2CA
Lighter +30%#E0B2A4
Lighter +20%#D4927D
Lighter +10%#C77257
Darker −10%#8A442E
Darker −20%#643121
Darker −30%#3D1E15
Darker −40%#170B08
More saturated +25%#CD481E
Less saturated −25%#936658

Channel breakdown

R176
G87
B59
Red176 (69%)
Green87 (34.1%)
Blue59 (23.1%)
Hue14.36°
Saturation (HSL)49.79%
Lightness46.08%
Dominant channelRed
Hex per channelR B0 · G 57 · B 3B

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Every value on this page was computed from “b0573b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.