Recognised as Colour
#FF7257
- #FF7257
- Red
- Dark
- Nearest: Tomato
#FF7257 is a red with RGB values 255, 114, 87 and HSL 10°, 100%, 67%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Tomato.
Colour values
#FF7257#FF7257
HEX#FF7257
RGBrgb(255, 114, 87)
RGB (0–1)1, 0.4471, 0.3412
RGB percentages100%, 44.7%, 34.1%
HSLhsl(9.6, 100%, 67.1%)
HSV / HSBhsv(9.6, 65.9%, 100%)
CMYK0%, 55.3%, 65.9%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,740,951
CSS custom property--colour: #FF7257;
Brightness & contrast
Relative luminance0.33983WCAG 2.x, 0 is black and 1 is white
Perceived brightness167.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.8:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.8:1WCAG normal text: AAA
Greyscale equivalent#8E8E8E
Inverted#008DA8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.8:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#57E4FF
Analogous#FF5790, #FFC657
Triadic#57FF72, #7257FF
Split complementary#57FFC6, #5790FF
Tetradic#90FF57, #57E4FF, #C657FF
Tints, shades & saturation
Channel breakdown
R255
G114
B87
Red255 (100%)
Green114 (44.7%)
Blue87 (34.1%)
Hue9.64°
Saturation (HSL)100%
Lightness67.06%
Dominant channelRed
Hex per channelR FF · G 72 · B 57
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Also reads as
FF7257 (chemical formula)
- Formula
- 137,887.484 g/mol
- 7258 atoms
FF7257 has a molar mass of 137,887.484 g/mol, made up of 7258 atoms across 1 element: 7258 × F.
Molar mass
Molar mass137,887.484 g/mol
Total atoms per molecule7258
Distinct elements1
Mass of one molecule2.2896755 × 10^-19 g
Molecules per gram4.367431 × 10^18
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
F100%
Fluorine (F × 7258)137,887.484 g/mol, 100%
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