Colour

#A31755

#A31755
Red
Dark
Nearest: Medium violet red

#A31755 is a red with RGB values 163, 23, 85 and HSL 333°, 75%, 36%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Medium violet red.

Colour values

#A31755#A31755

HEX#A31755

RGBrgb(163, 23, 85)

RGB (0–1)0.6392, 0.0902, 0.3333

RGB percentages63.9%, 9%, 33.3%

HSLhsl(333.4, 75.3%, 36.5%)

HSV / HSBhsv(333.4, 85.9%, 63.9%)

CMYK0%, 85.9%, 47.9%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,688,341

CSS custom property--colour: #A31755;

Brightness & contrast

Relative luminance0.09055WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.47:1

Contrast with white7.47:1WCAG normal text: AAA

Contrast with black2.81:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#5CE8AA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D4456no red cones; affects about 1% of men; ΔE 57.5 from the original

Deuteranopia#625E52no green cones; the most common form, about 1% of men; ΔE 58.6 from the original

Tritanopia#B20035no blue cones; rare, and affects men and women equally; ΔE 23.4 from the original

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

Contrast with white, large text7.47:1WCAG large text: AAA

Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Medium violet red · ΔE 23 Pale violetred · ΔE 27.2 Indian red · ΔE 29.9 Brown · ΔE 30.3 Hot pink · ΔE 32.4 Deep pink · ΔE 34.3

Nearest named CSS colourMedium violet red (#C71585)ΔE 23.01, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17A365

Analogous#A3179B, #A31F17

Triadic#55A317, #1755A3

Split complementary#17A31F, #179BA3

Tetradic#9BA317, #17A365, #1F17A3

Tints, shades & saturation

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

Lighter +40%#F096BE

Lighter +30%#EA69A2

Lighter +20%#E43C86

Lighter +10%#D01D6C

Darker −10%#76113E

Darker −20%#4A0A26

Darker −30%#1D040F

Darker −40%#000000

More saturated +25%#BA0052

Less saturated −25%#8C2E58

Channel breakdown

R163

G23

B85

Red163 (63.9%)

Green23 (9%)

Blue85 (33.3%)

Hue333.43°

Saturation (HSL)75.27%

Lightness36.47%

Dominant channelRed

Hex per channelR A3 · G 17 · B 55

Keep nerding

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

#A31755

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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