Recognised as Colour
#BF3C37
- #BF3C37
- Red
- Dark
- Nearest: Brown
#BF3C37 is a red with RGB values 191, 60, 55 and HSL 2°, 55%, 48%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BF3C37#BF3C37
HEX#BF3C37
RGBrgb(191, 60, 55)
RGB (0–1)0.749, 0.2353, 0.2157
RGB percentages74.9%, 23.5%, 21.6%
HSLhsl(2.2, 55.3%, 48.2%)
HSV / HSBhsv(2.2, 71.2%, 74.9%)
CMYK0%, 68.6%, 71.2%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,532,791
CSS custom property--colour: #BF3C37;
Brightness & contrast
Relative luminance0.14584WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.36:1
Contrast with white5.36:1WCAG normal text: AA
Contrast with black3.92:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#40C3C8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.36:1WCAG large text: AAA
Contrast with black, large text3.92:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#37BABF
Analogous#BF3776, #BF8037
Triadic#37BF3C, #3C37BF
Split complementary#37BF80, #3776BF
Tetradic#76BF37, #37BABF, #8037BF
Tints, shades & saturation
Channel breakdown
R191
G60
B55
Red191 (74.9%)
Green60 (23.5%)
Blue55 (21.6%)
Hue2.21°
Saturation (HSL)55.28%
Lightness48.24%
Dominant channelRed
Hex per channelR BF · G 3C · B 37
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Also reads as
BF3C37 (chemical formula)
- Formula
- 512.211 g/mol
- 41 atoms
BF3C37 has a molar mass of 512.211 g/mol, made up of 41 atoms across 3 elements: 1 × B, 3 × F, 37 × C.
Molar mass
Molar mass512.211 g/mol
Total atoms per molecule41
Distinct elements3
Mass of one molecule8.5054638 × 10^-22 g
Molecules per gram1.1757148 × 10^21
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
B2.1%
F11.1%
C86.8%
Boron (B)10.81 g/mol, 2.11%
Fluorine (F × 3)56.994 g/mol, 11.127%
Carbon (C × 37)444.407 g/mol, 86.762%
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