Recognised as Colour
#B25F56
- #B25F56
- Red
- Dark
- Nearest: Indian red
#B25F56 is a red with RGB values 178, 95, 86 and HSL 6°, 37%, 52%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#B25F56#B25F56
HEX#B25F56
RGBrgb(178, 95, 86)
RGB (0–1)0.698, 0.3725, 0.3373
RGB percentages69.8%, 37.3%, 33.7%
HSLhsl(5.9, 37.4%, 51.8%)
HSV / HSBhsv(5.9, 51.7%, 69.8%)
CMYK0%, 46.6%, 51.7%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,689,814
CSS custom property--colour: #B25F56;
Brightness & contrast
Relative luminance0.18321WCAG 2.x, 0 is black and 1 is white
Perceived brightness125 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.66:1
Contrast with white4.5:1WCAG normal text: AA
Contrast with black4.66:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#4DA0A9
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.5:1WCAG large text: AAA
Contrast with black, large text4.66:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#56A9B2
Analogous#B2567B, #B28D56
Triadic#56B25F, #5F56B2
Split complementary#56B28D, #567BB2
Tetradic#7BB256, #56A9B2, #8D56B2
Tints, shades & saturation
Channel breakdown
R178
G95
B86
Red178 (69.8%)
Green95 (37.3%)
Blue86 (33.7%)
Hue5.87°
Saturation (HSL)37.4%
Lightness51.76%
Dominant channelRed
Hex per channelR B2 · G 5F · B 56
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Harmonies
Similar named colours
Also reads as
B25F56 (chemical formula)
- Formula
- 1,334.138 g/mol
- 81 atoms
B25F56 has a molar mass of 1,334.138 g/mol, made up of 81 atoms across 2 elements: 25 × B, 56 × F.
Molar mass
Molar mass1,334.138 g/mol
Total atoms per molecule81
Distinct elements2
Mass of one molecule2.2153883 × 10^-21 g
Molecules per gram4.5138814 × 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
B20.3%
F79.7%
Boron (B × 25)270.25 g/mol, 20.257%
Fluorine (F × 56)1,063.888 g/mol, 79.743%
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