Colour

#FF647B

#FF647B
Red
Dark
Nearest: Light coral

#FF647B is a red with RGB values 255, 100, 123 and HSL 351°, 100%, 70%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Light coral.

Colour values

#FF647B#FF647B

HEX#FF647B

RGBrgb(255, 100, 123)

RGB (0–1)1, 0.3922, 0.4824

RGB percentages100%, 39.2%, 48.2%

HSLhsl(351.1, 100%, 69.6%)

HSV / HSBhsv(351.1, 60.8%, 100%)

CMYK0%, 60.8%, 51.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,737,403

CSS custom property--colour: #FF647B;

Brightness & contrast

Relative luminance0.31804WCAG 2.x, 0 is black and 1 is white

Perceived brightness164.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.36:1

Contrast with white2.85:1WCAG normal text: Fail

Contrast with black7.36:1WCAG normal text: AAA

Greyscale equivalent#878787

Inverted#009B84

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#88857Bno red cones; affects about 1% of men; ΔE 63.2 from the original

Deuteranopia#B0A577no green cones; the most common form, about 1% of men; ΔE 64.3 from the original

Tritanopia#FF4B6Dno blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.85:1WCAG large text: Fail

Contrast with black, large text7.36:1WCAG large text: AAA

Named colours

Light coral · ΔE 18.1 Indian red · ΔE 18.9 Salmon · ΔE 19 Pale violetred · ΔE 23.9 Crimson · ΔE 24.3 Tomato · ΔE 27.9

Nearest named CSS colourLight coral (#F08080)ΔE 18.08, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#64FFE8

Analogous#FF64C8, #FF9B64

Triadic#7BFF64, #647BFF

Split complementary#64FF9B, #64C8FF

Tetradic#C8FF64, #64FFE8, #9B64FF

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFFDFD

Lighter +20%#FFCAD2

Lighter +10%#FF97A6

Darker −10%#FF3150

Darker −20%#FD0026

Darker −30%#CA001E

Darker −40%#970016

More saturated +25%#FF647B

Less saturated −25%#EC7789

Channel breakdown

R255

G100

B123

Red255 (100%)

Green100 (39.2%)

Blue123 (48.2%)

Hue351.1°

Saturation (HSL)100%

Lightness69.61%

Dominant channelRed

Hex per channelR FF · G 64 · B 7B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF647B (chemical formula)

Formula
12,321.514 g/mol
649 atoms

FF647B has a molar mass of 12,321.514 g/mol, made up of 649 atoms across 2 elements: 648 × F, 1 × B.

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Molar mass

Molar mass12,321.514 g/mol

Total atoms per molecule649

Distinct elements2

Mass of one molecule2.0460355 × 10^-20 g

Molecules per gram4.8875006 × 10^19

Composition by mass

F99.9%

B0.1%

Fluorine (F × 648)12,310.704 g/mol, 99.912%

Boron (B)10.81 g/mol, 0.088%

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