Colour

#FF557A

#FF557A
Red
Dark
Nearest: Crimson

#FF557A is a red with RGB values 255, 85, 122 and HSL 347°, 100%, 67%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF557A#FF557A

HEX#FF557A

RGBrgb(255, 85, 122)

RGB (0–1)1, 0.3333, 0.4784

RGB percentages100%, 33.3%, 47.8%

HSLhsl(346.9, 100%, 66.7%)

HSV / HSBhsv(346.9, 66.7%, 100%)

CMYK0%, 66.7%, 52.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,733,562

CSS custom property--colour: #FF557A;

Brightness & contrast

Relative luminance0.29162WCAG 2.x, 0 is black and 1 is white

Perceived brightness159.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.83:1

Contrast with white3.07:1WCAG normal text: Fail

Contrast with black6.83:1WCAG normal text: AA

Greyscale equivalent#7C7C7C

Inverted#00AA85

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7E7D7Bno red cones; affects about 1% of men; ΔE 68.8 from the original

Deuteranopia#AAA076no green cones; the most common form, about 1% of men; ΔE 70.1 from the original

Tritanopia#FF3464no blue cones; rare, and affects men and women equally; ΔE 12.3 from the original

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

Contrast with white, large text3.07:1WCAG large text: AA

Contrast with black, large text6.83:1WCAG large text: AAA

Named colours

Crimson · ΔE 22.7 Indian red · ΔE 23.8 Light coral · ΔE 24.6 Salmon · ΔE 25.8 Pale violetred · ΔE 26.3 Hot pink · ΔE 27.3

Nearest named CSS colourCrimson (#DC143C)ΔE 22.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#55FFDA

Analogous#FF55CF, #FF8555

Triadic#7AFF55, #557AFF

Split complementary#55FF85, #55CFFF

Tetradic#CFFF55, #55FFDA, #8555FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFEEF2

Lighter +20%#FFBBCA

Lighter +10%#FF88A2

Darker −10%#FF2252

Darker −20%#EE0034

Darker −30%#BB0029

Darker −40%#88001E

More saturated +25%#FF557A

Less saturated −25%#EA6A86

Channel breakdown

R255

G85

B122

Red255 (100%)

Green85 (33.3%)

Blue122 (47.8%)

Hue346.94°

Saturation (HSL)100%

Lightness66.67%

Dominant channelRed

Hex per channelR FF · G 55 · B 7A

Keep nerding

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

#FF557A

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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