Recognised as Colour
#FF687B
- #FF687B
- Red
- Dark
- Nearest: Light coral
#FF687B is a red with RGB values 255, 104, 123 and HSL 352°, 100%, 70%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Light coral.
Colour values
#FF687B#FF687B
HEX#FF687B
RGBrgb(255, 104, 123)
RGB (0–1)1, 0.4078, 0.4824
RGB percentages100%, 40.8%, 48.2%
HSLhsl(352.5, 100%, 70.4%)
HSV / HSBhsv(352.5, 59.2%, 100%)
CMYK0%, 59.2%, 51.8%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,738,427
CSS custom property--colour: #FF687B;
Brightness & contrast
Relative luminance0.32591WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.52:1
Contrast with white2.79:1WCAG normal text: Fail
Contrast with black7.52:1WCAG normal text: AAA
Greyscale equivalent#898989
Inverted#009784
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.79:1WCAG large text: Fail
Contrast with black, large text7.52:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#68FFEC
Analogous#FF68C6, #FFA068
Triadic#7BFF68, #687BFF
Split complementary#68FFA0, #68C7FF
Tetradic#C7FF68, #68FFEC, #A168FF
Tints, shades & saturation
Channel breakdown
R255
G104
B123
Red255 (100%)
Green104 (40.8%)
Blue123 (48.2%)
Hue352.45°
Saturation (HSL)100%
Lightness70.39%
Dominant channelRed
Hex per channelR FF · G 68 · B 7B
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Harmonies
Similar named colours
Also reads as
FF687B (chemical formula)
- Formula
- 13,081.434 g/mol
- 689 atoms
FF687B has a molar mass of 13,081.434 g/mol, made up of 689 atoms across 2 elements: 688 × F, 1 × B.
Molar mass
Molar mass13,081.434 g/mol
Total atoms per molecule689
Distinct elements2
Mass of one molecule2.1722232 × 10^-20 g
Molecules per gram4.6035784 × 10^19
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
F99.9%
B0.1%
Fluorine (F × 688)13,070.624 g/mol, 99.917%
Boron (B)10.81 g/mol, 0.083%
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