Recognised as Colour
#BB4C48
- #BB4C48
- Red
- Dark
- Nearest: Indian red
#BB4C48 is a red with RGB values 187, 76, 72 and HSL 2°, 46%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#BB4C48#BB4C48
HEX#BB4C48
RGBrgb(187, 76, 72)
RGB (0–1)0.7333, 0.298, 0.2824
RGB percentages73.3%, 29.8%, 28.2%
HSLhsl(2.1, 45.8%, 50.8%)
HSV / HSBhsv(2.1, 61.5%, 73.3%)
CMYK0%, 59.4%, 61.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,274,760
CSS custom property--colour: #BB4C48;
Brightness & contrast
Relative luminance0.16202WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.95:1
Contrast with white4.95:1WCAG normal text: AA
Contrast with black4.24:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#44B3B7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.95:1WCAG large text: AAA
Contrast with black, large text4.24:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#48B7BB
Analogous#BB487E, #BB8548
Triadic#48BB4C, #4C48BB
Split complementary#48BB85, #487EBB
Tetradic#7EBB48, #48B7BB, #8548BB
Tints, shades & saturation
Channel breakdown
R187
G76
B72
Red187 (73.3%)
Green76 (29.8%)
Blue72 (28.2%)
Hue2.09°
Saturation (HSL)45.82%
Lightness50.78%
Dominant channelRed
Hex per channelR BB · G 4C · B 48
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Also reads as
BB4C48 (chemical formula)
- Formula
- 630.578 g/mol
- 53 atoms
BB4C48 has a molar mass of 630.578 g/mol, made up of 53 atoms across 2 elements: 5 × B, 48 × C.
Molar mass
Molar mass630.578 g/mol
Total atoms per molecule53
Distinct elements2
Mass of one molecule1.0470994 × 10^-21 g
Molecules per gram9.5501917 × 10^20
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
B8.6%
C91.4%
Boron (B × 5)54.05 g/mol, 8.572%
Carbon (C × 48)576.528 g/mol, 91.428%
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