Colour

#FF5166

#FF5166
Red
Dark
Nearest: Crimson

#FF5166 is a red with RGB values 255, 81, 102 and HSL 353°, 100%, 66%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF5166#FF5166

HEX#FF5166

RGBrgb(255, 81, 102)

RGB (0–1)1, 0.3176, 0.4

RGB percentages100%, 31.8%, 40%

HSLhsl(352.8, 100%, 65.9%)

HSV / HSBhsv(352.8, 68.2%, 100%)

CMYK0%, 68.2%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,732,518

CSS custom property--colour: #FF5166;

Brightness & contrast

Relative luminance0.28104WCAG 2.x, 0 is black and 1 is white

Perceived brightness156.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.62:1

Contrast with white3.17:1WCAG normal text: Fail

Contrast with black6.62:1WCAG normal text: AA

Greyscale equivalent#787878

Inverted#00AE99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F7966no red cones; affects about 1% of men; ΔE 70.1 from the original

Deuteranopia#AB9E61no green cones; the most common form, about 1% of men; ΔE 71.3 from the original

Tritanopia#FF245Ano blue cones; rare, and affects men and women equally; ΔE 12.7 from the original

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

Contrast with white, large text3.17:1WCAG large text: AA

Contrast with black, large text6.62:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.4 Tomato · ΔE 21.9 Salmon · ΔE 22.8 Indian red · ΔE 23.2 Light coral · ΔE 25.6 Firebrick · ΔE 26

Nearest named CSS colourCrimson (#DC143C)ΔE 15.37, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#51FFEA

Analogous#FF51BD, #FF9351

Triadic#66FF51, #5166FF

Split complementary#51FF93, #51BDFF

Tetradic#BDFF51, #51FFEA, #9351FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFEAED

Lighter +20%#FFB7C0

Lighter +10%#FF8493

Darker −10%#FF1E39

Darker −20%#EA001C

Darker −30%#B70016

Darker −40%#840010

More saturated +25%#FF5166

Less saturated −25%#E96777

Channel breakdown

R255

G81

B102

Red255 (100%)

Green81 (31.8%)

Blue102 (40%)

Hue352.76°

Saturation (HSL)100%

Lightness65.88%

Dominant channelRed

Hex per channelR FF · G 51 · B 66

Keep nerding

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#FF5166

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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