Recognised as Colour
#B28B83
- #B28B83
- Red
- Dark
- Nearest: Rosy brown
#B28B83 is a red with RGB values 178, 139, 131 and HSL 10°, 23%, 61%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Rosy brown.
Colour values
#B28B83#B28B83
HEX#B28B83
RGBrgb(178, 139, 131)
RGB (0–1)0.698, 0.5451, 0.5137
RGB percentages69.8%, 54.5%, 51.4%
HSLhsl(10.2, 23.4%, 60.6%)
HSV / HSBhsv(10.2, 26.4%, 69.8%)
CMYK0%, 21.9%, 26.4%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,701,123
CSS custom property--colour: #B28B83;
Brightness & contrast
Relative luminance0.29569WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.91:1
Contrast with white3.04:1WCAG normal text: Fail
Contrast with black6.91:1WCAG normal text: AA
Greyscale equivalent#939393
Inverted#4D747C
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.04:1WCAG large text: AA
Contrast with black, large text6.91:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#83AAB2
Analogous#B28393, #B2A283
Triadic#83B28B, #8B83B2
Split complementary#83B2A2, #8393B2
Tetradic#93B283, #83AAB2, #A383B2
Tints, shades & saturation
Channel breakdown
R178
G139
B131
Red178 (69.8%)
Green139 (54.5%)
Blue131 (51.4%)
Hue10.21°
Saturation (HSL)23.38%
Lightness60.59%
Dominant channelRed
Hex per channelR B2 · G 8B · B 83
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Also reads as
B28B83 (chemical formula)
- Formula
- 1,199.91 g/mol
- 111 atoms
B28B83 has a molar mass of 1,199.91 g/mol, made up of 111 atoms across 1 element: 111 × B.
Molar mass
Molar mass1,199.91 g/mol
Total atoms per molecule111
Distinct elements1
Mass of one molecule1.9924974 × 10^-21 g
Molecules per gram5.018827 × 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
B100%
Boron (B × 111)1,199.91 g/mol, 100%
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