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Recognised as Colour

#BF817F

  • #BF817F
  • Red
  • Dark
  • Nearest: Rosy brown

#BF817F is a red with RGB values 191, 129, 127 and HSL 2°, 33%, 62%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#BF817F#BF817F
HEX#BF817F
RGBrgb(191, 129, 127)
RGB (0–1)0.749, 0.5059, 0.498
RGB percentages74.9%, 50.6%, 49.8%
HSLhsl(1.9, 33.3%, 62.4%)
HSV / HSBhsv(1.9, 33.5%, 74.9%)
CMYK0%, 32.5%, 33.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,550,527
CSS custom property--colour: #BF817F;

Brightness & contrast

Relative luminance0.28309WCAG 2.x, 0 is black and 1 is white
Perceived brightness150 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.66:1
Contrast with white3.15:1WCAG normal text: Fail
Contrast with black6.66:1WCAG normal text: AA
Greyscale equivalent#8E8E8E
Inverted#407E80

Colour vision & accessibility

Protanopia#8D8A7Fno red cones; affects about 1% of men; ΔE 25.2 from the original
Deuteranopia#9C967Eno green cones; the most common form, about 1% of men; ΔE 25.8 from the original
Tritanopia#CB7A81no blue cones; rare, and affects men and women equally; ΔE 8.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.15:1WCAG large text: AA
Contrast with black, large text6.66:1WCAG large text: AAA

Named colours

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 8.64, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#7FBDBF
Analogous#BF7F9D, #BFA17F
Triadic#7FBF81, #817FBF
Split complementary#7FBFA1, #7F9DBF
Tetradic#9DBF7F, #7FBDBF, #A17FBF

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#F2E5E5
Lighter +20%#E1C4C3
Lighter +10%#D0A2A1
Darker −10%#AE605D
Darker −20%#904A48
Darker −30%#6E3937
Darker −40%#4C2726
More saturated +25%#D76B67
Less saturated −25%#A79897

Channel breakdown

R191
G129
B127
Red191 (74.9%)
Green129 (50.6%)
Blue127 (49.8%)
Hue1.87°
Saturation (HSL)33.33%
Lightness62.35%
Dominant channelRed
Hex per channelR BF · G 81 · B 7F

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Also reads as

BF817F (chemical formula)

  • Formula
  • 15,551.174 g/mol
  • 819 atoms

BF817F has a molar mass of 15,551.174 g/mol, made up of 819 atoms across 2 elements: 1 × B, 818 × F.

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Molar mass

Molar mass15,551.174 g/mol
Total atoms per molecule819
Distinct elements2
Mass of one molecule2.5823332 × 10^-20 g
Molecules per gram3.872467 × 10^19

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

B0.1%
F99.9%
Fluorine (F × 818)15,540.364 g/mol, 99.93%

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Every value on this page was computed from “bf817f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.