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Colour

#552A80

  • #552A80
  • Violet
  • Dark
  • Nearest: Rebecca purple

#552A80 is a violet with RGB values 85, 42, 128 and HSL 270°, 51%, 33%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#552A80#552A80
HEX#552A80
RGBrgb(85, 42, 128)
RGB (0–1)0.3333, 0.1647, 0.502
RGB percentages33.3%, 16.5%, 50.2%
HSLhsl(270, 50.6%, 33.3%)
HSV / HSBhsv(270, 67.2%, 50.2%)
CMYK33.6%, 67.2%, 0%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,581,440
CSS custom property--colour: #552A80;

Brightness & contrast

Relative luminance0.05146WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.35:1
Contrast with white10.35:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#AAD57F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003F83no red cones; affects about 1% of men; ΔE 26.3 from the original
Deuteranopia#0D407Eno green cones; the most common form, about 1% of men; ΔE 28.3 from the original
Tritanopia#4D3D51no blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.35:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 10Dark slateblue · ΔE 11.9Midnight blue · ΔE 15.2Indigo · ΔE 20Purple · ΔE 22.2Slate blue · ΔE 24.7
Nearest named CSS colourRebecca purple (#663399)ΔE 10.01, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#55802A
Analogous#2A2A80, #802A80
Triadic#80552A, #2A8055
Split complementary#80802A, #2A802A
Tetradic#802A2A, #55802A, #2A8080

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BB99DD
Lighter +30%#A272D1
Lighter +20%#884CC4
Lighter +10%#6E37A6
Darker −10%#3B1D5A
Darker −20%#221133
Darker −30%#08040D
Darker −40%#000000
More saturated +25%#551595
Less saturated −25%#553F6B

Channel breakdown

R85
G42
B128
Red85 (33.3%)
Green42 (16.5%)
Blue128 (50.2%)
Hue270°
Saturation (HSL)50.59%
Lightness33.33%
Dominant channelBlue
Hex per channelR 55 · G 2A · B 80

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Every value on this page was computed from “552a80” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.