Recognised as Colour
#BF6131
- #BF6131
- Orange
- Dark
- Nearest: Sienna
#BF6131 is a orange with RGB values 191, 97, 49 and HSL 20°, 59%, 47%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Sienna.
Colour values
#BF6131#BF6131
HEX#BF6131
RGBrgb(191, 97, 49)
RGB (0–1)0.749, 0.3804, 0.1922
RGB percentages74.9%, 38%, 19.2%
HSLhsl(20.3, 59.2%, 47.1%)
HSV / HSBhsv(20.3, 74.3%, 74.9%)
CMYK0%, 49.2%, 74.3%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,542,257
CSS custom property--colour: #BF6131;
Brightness & contrast
Relative luminance0.19848WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.97:1
Contrast with white4.23:1WCAG normal text: Fail
Contrast with black4.97:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#409ECE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.23:1WCAG large text: AA
Contrast with black, large text4.97:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#318FBF
Analogous#BF3148, #BFA831
Triadic#31BF61, #6131BF
Split complementary#31BFA8, #3148BF
Tetradic#48BF31, #318FBF, #A831BF
Tints, shades & saturation
Channel breakdown
R191
G97
B49
Red191 (74.9%)
Green97 (38%)
Blue49 (19.2%)
Hue20.28°
Saturation (HSL)59.17%
Lightness47.06%
Dominant channelRed
Hex per channelR BF · G 61 · B 31
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Also reads as
BF6131 (chemical formula)
- Formula
- 116,487.548 g/mol
- 6132 atoms
BF6131 has a molar mass of 116,487.548 g/mol, made up of 6132 atoms across 2 elements: 1 × B, 6131 × F.
Molar mass
Molar mass116,487.548 g/mol
Total atoms per molecule6132
Distinct elements2
Mass of one molecule1.9343212 × 10^-19 g
Molecules per gram5.1697721 × 10^18
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%
F100%
Boron (B)10.81 g/mol, 0.009%
Fluorine (F × 6131)116,476.738 g/mol, 99.991%
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