Recognised as Colour
#F18B56
- #F18B56
- Orange
- Dark
- Nearest: Coral
#F18B56 is a orange with RGB values 241, 139, 86 and HSL 21°, 85%, 64%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Coral.
Colour values
#F18B56#F18B56
HEX#F18B56
RGBrgb(241, 139, 86)
RGB (0–1)0.9451, 0.5451, 0.3373
RGB percentages94.5%, 54.5%, 33.7%
HSLhsl(20.5, 84.7%, 64.1%)
HSV / HSBhsv(20.5, 64.3%, 94.5%)
CMYK0%, 42.3%, 64.3%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,829,846
CSS custom property--colour: #F18B56;
Brightness & contrast
Relative luminance0.37838WCAG 2.x, 0 is black and 1 is white
Perceived brightness171.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.57:1
Contrast with white2.45:1WCAG normal text: Fail
Contrast with black8.57:1WCAG normal text: AAA
Greyscale equivalent#9D9D9D
Inverted#0E74A9
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.45:1WCAG large text: Fail
Contrast with black, large text8.57:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#56BCF1
Analogous#F1566F, #F1D856
Triadic#56F18B, #8B56F1
Split complementary#56F1D8, #566FF1
Tetradic#6FF156, #56BCF1, #D856F1
Tints, shades & saturation
Channel breakdown
R241
G139
B86
Red241 (94.5%)
Green139 (54.5%)
Blue86 (33.7%)
Hue20.52°
Saturation (HSL)84.7%
Lightness64.12%
Dominant channelRed
Hex per channelR F1 · G 8B · B 56
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Harmonies
Similar named colours
Also reads as
F18B56 (chemical formula)
- Formula
- 947.324 g/mol
- 74 atoms
F18B56 has a molar mass of 947.324 g/mol, made up of 74 atoms across 2 elements: 18 × F, 56 × B.
Molar mass
Molar mass947.324 g/mol
Total atoms per molecule74
Distinct elements2
Mass of one molecule1.5730685 × 10^-21 g
Molecules per gram6.3570022 × 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
F36.1%
B63.9%
Fluorine (F × 18)341.964 g/mol, 36.098%
Boron (B × 56)605.36 g/mol, 63.902%
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