Colour

#FF5566

#FF5566
Red
Dark
Nearest: Crimson

#FF5566 is a red with RGB values 255, 85, 102 and HSL 354°, 100%, 67%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF5566#FF5566

HEX#FF5566

HEX (short)#F56

RGBrgb(255, 85, 102)

RGB (0–1)1, 0.3333, 0.4

RGB percentages100%, 33.3%, 40%

HSLhsl(354, 100%, 66.7%)

HSV / HSBhsv(354, 66.7%, 100%)

CMYK0%, 66.7%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,733,542

CSS custom property--colour: #FF5566;

Brightness & contrast

Relative luminance0.28716WCAG 2.x, 0 is black and 1 is white

Perceived brightness157.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.74:1

Contrast with white3.11:1WCAG normal text: Fail

Contrast with black6.74:1WCAG normal text: AA

Greyscale equivalent#7A7A7A

Inverted#00AA99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#817B66no red cones; affects about 1% of men; ΔE 68.9 from the original

Deuteranopia#AD9F61no green cones; the most common form, about 1% of men; ΔE 69.5 from the original

Tritanopia#FF2D5Cno blue cones; rare, and affects men and women equally; ΔE 12.4 from the original

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

Contrast with white, large text3.11:1WCAG large text: AA

Contrast with black, large text6.74:1WCAG large text: AAA

Named colours

Crimson · ΔE 16 Tomato · ΔE 20.6 Salmon · ΔE 21.1 Indian red · ΔE 22.2 Light coral · ΔE 24.3 Firebrick · ΔE 25.6

Nearest named CSS colourCrimson (#DC143C)ΔE 16, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#55FFEE

Analogous#FF55BB, #FF9955

Triadic#66FF55, #5566FF

Split complementary#55FF99, #55BBFF

Tetradic#BBFF55, #55FFEE, #9955FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFEEF0

Lighter +20%#FFBBC2

Lighter +10%#FF8894

Darker −10%#FF2238

Darker −20%#EE0018

Darker −30%#BB0013

Darker −40%#88000E

More saturated +25%#FF5566

Less saturated −25%#EA6A77

Channel breakdown

R255

G85

B102

Red255 (100%)

Green85 (33.3%)

Blue102 (40%)

Hue354°

Saturation (HSL)100%

Lightness66.67%

Dominant channelRed

Hex per channelR FF · G 55 · B 66

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#FF5566

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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