Recognised as Colour
#F87B3B
- #F87B3B
- Orange
- Dark
- Nearest: Coral
#F87B3B is a orange with RGB values 248, 123, 59 and HSL 20°, 93%, 60%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Coral.
Colour values
#F87B3B#F87B3B
HEX#F87B3B
RGBrgb(248, 123, 59)
RGB (0–1)0.9725, 0.4824, 0.2314
RGB percentages97.3%, 48.2%, 23.1%
HSLhsl(20.3, 93.1%, 60.2%)
HSV / HSBhsv(20.3, 76.2%, 97.3%)
CMYK0%, 50.4%, 76.2%, 2.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,284,475
CSS custom property--colour: #F87B3B;
Brightness & contrast
Relative luminance0.34438WCAG 2.x, 0 is black and 1 is white
Perceived brightness166.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.89:1
Contrast with white2.66:1WCAG normal text: Fail
Contrast with black7.89:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#0784C4
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.66:1WCAG large text: Fail
Contrast with black, large text7.89:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3BB8F8
Analogous#F83B5A, #F8D93B
Triadic#3BF87B, #7B3BF8
Split complementary#3BF8D9, #3B5AF8
Tetradic#5AF83B, #3BB8F8, #D93BF8
Tints, shades & saturation
Channel breakdown
R248
G123
B59
Red248 (97.3%)
Green123 (48.2%)
Blue59 (23.1%)
Hue20.32°
Saturation (HSL)93.1%
Lightness60.2%
Dominant channelRed
Hex per channelR F8 · G 7B · B 3B
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Also reads as
F87B3B (chemical formula)
- Formula
- 1,696.066 g/mol
- 91 atoms
F87B3B has a molar mass of 1,696.066 g/mol, made up of 91 atoms across 2 elements: 87 × F, 4 × B.
Molar mass
Molar mass1,696.066 g/mol
Total atoms per molecule91
Distinct elements2
Mass of one molecule2.8163839 × 10^-21 g
Molecules per gram3.5506524 × 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
F97.5%
B2.5%
Fluorine (F × 87)1,652.826 g/mol, 97.451%
Boron (B × 4)43.24 g/mol, 2.549%
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