Recognised as Colour
#BF591F
- #BF591F
- Orange
- Dark
- Nearest: Chocolate
#BF591F is a orange with RGB values 191, 89, 31 and HSL 22°, 72%, 44%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Chocolate.
Colour values
#BF591F#BF591F
HEX#BF591F
RGBrgb(191, 89, 31)
RGB (0–1)0.749, 0.349, 0.1216
RGB percentages74.9%, 34.9%, 12.2%
HSLhsl(21.7, 72.1%, 43.5%)
HSV / HSBhsv(21.7, 83.8%, 74.9%)
CMYK0%, 53.4%, 83.8%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,540,191
CSS custom property--colour: #BF591F;
Brightness & contrast
Relative luminance0.1832WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.66:1
Contrast with white4.5:1WCAG normal text: AA
Contrast with black4.66:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#40A6E0
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.5:1WCAG large text: AAA
Contrast with black, large text4.66:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1F85BF
Analogous#BF1F35, #BFA91F
Triadic#1FBF59, #591FBF
Split complementary#1FBFA9, #1F35BF
Tetradic#35BF1F, #1F85BF, #A91FBF
Tints, shades & saturation
Channel breakdown
R191
G89
B31
Red191 (74.9%)
Green89 (34.9%)
Blue31 (12.2%)
Hue21.75°
Saturation (HSL)72.07%
Lightness43.53%
Dominant channelRed
Hex per channelR BF · G 59 · B 1F
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Also reads as
BF591F (chemical formula)
- Formula
- 11,257.626 g/mol
- 593 atoms
BF591F has a molar mass of 11,257.626 g/mol, made up of 593 atoms across 2 elements: 1 × B, 592 × F.
Molar mass
Molar mass11,257.626 g/mol
Total atoms per molecule593
Distinct elements2
Mass of one molecule1.8693728 × 10^-20 g
Molecules per gram5.3493878 × 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%
Boron (B)10.81 g/mol, 0.096%
Fluorine (F × 592)11,246.816 g/mol, 99.904%
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