Recognised as Colour
#BF613F
- #BF613F
- Orange
- Dark
- Nearest: Sienna
#BF613F is a orange with RGB values 191, 97, 63 and HSL 16°, 50%, 50%. 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
#BF613F#BF613F
HEX#BF613F
RGBrgb(191, 97, 63)
RGB (0–1)0.749, 0.3804, 0.2471
RGB percentages74.9%, 38%, 24.7%
HSLhsl(15.9, 50.4%, 49.8%)
HSV / HSBhsv(15.9, 67%, 74.9%)
CMYK0%, 49.2%, 67%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,542,271
CSS custom property--colour: #BF613F;
Brightness & contrast
Relative luminance0.19985WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5:1
Contrast with white4.2:1WCAG normal text: Fail
Contrast with black5:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#409EC0
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.2:1WCAG large text: AA
Contrast with black, large text5:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3F9DBF
Analogous#BF3F5D, #BFA13F
Triadic#3FBF61, #613FBF
Split complementary#3FBFA1, #3F5DBF
Tetradic#5DBF3F, #3F9DBF, #A13FBF
Tints, shades & saturation
Channel breakdown
R191
G97
B63
Red191 (74.9%)
Green97 (38%)
Blue63 (24.7%)
Hue15.94°
Saturation (HSL)50.39%
Lightness49.8%
Dominant channelRed
Hex per channelR BF · G 61 · B 3F
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Harmonies
Similar named colours
Also reads as
BF613F (chemical formula)
- Formula
- 11,675.582 g/mol
- 615 atoms
BF613F has a molar mass of 11,675.582 g/mol, made up of 615 atoms across 2 elements: 1 × B, 614 × F.
Molar mass
Molar mass11,675.582 g/mol
Total atoms per molecule615
Distinct elements2
Mass of one molecule1.938776 × 10^-20 g
Molecules per gram5.1578934 × 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, 0.093%
Fluorine (F × 614)11,664.772 g/mol, 99.907%
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