Colour

#AD555B

#AD555B
Red
Dark
Nearest: Indian red

#AD555B is a red with RGB values 173, 85, 91 and HSL 356°, 35%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AD555B#AD555B

HEX#AD555B

RGBrgb(173, 85, 91)

RGB (0–1)0.6784, 0.3333, 0.3569

RGB percentages67.8%, 33.3%, 35.7%

HSLhsl(355.9, 34.9%, 50.6%)

HSV / HSBhsv(355.9, 50.9%, 67.8%)

CMYK0%, 50.9%, 47.4%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,359,579

CSS custom property--colour: #AD555B;

Brightness & contrast

Relative luminance0.16137WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.97:1

Contrast with white4.97:1WCAG normal text: AA

Contrast with black4.23:1WCAG normal text: Fail

Greyscale equivalent#686868

Inverted#52AAA4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#68655Bno red cones; affects about 1% of men; ΔE 38.2 from the original

Deuteranopia#7E7759no green cones; the most common form, about 1% of men; ΔE 39.2 from the original

Tritanopia#BB4958no blue cones; rare, and affects men and women equally; ΔE 10.9 from the original

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

Contrast with white, large text4.97:1WCAG large text: AAA

Contrast with black, large text4.23:1WCAG large text: AA

Named colours

Indian red · ΔE 13.5 Pale violetred · ΔE 20.8 Light coral · ΔE 20.9 Sienna · ΔE 23.6 Brown · ΔE 23.6 Rosy brown · ΔE 26.4

Nearest named CSS colourIndian red (#CD5C5C)ΔE 13.55, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#55ADA7

Analogous#AD5587, #AD7B55

Triadic#5BAD55, #555BAD

Split complementary#55AD7B, #5587AD

Tetradic#87AD55, #55ADA7, #7B55AD

Tints, shades & saturation

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

Lighter +40%#EFDFE0

Lighter +30%#DFBCBF

Lighter +20%#CE9A9D

Lighter +10%#BE777C

Darker −10%#8C4348

Darker −20%#693336

Darker −30%#472225

Darker −40%#241213

More saturated +25%#CD3540

Less saturated −25%#8E7476

Channel breakdown

R173

G85

B91

Red173 (67.8%)

Green85 (33.3%)

Blue91 (35.7%)

Hue355.91°

Saturation (HSL)34.92%

Lightness50.59%

Dominant channelRed

Hex per channelR AD · G 55 · B 5B

Keep nerding

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

#AD555B

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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