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Recognised as Colour

#553AD4

  • #553AD4
  • Blue
  • Dark
  • Nearest: Blue violet

#553AD4 is a blue with RGB values 85, 58, 212 and HSL 251°, 64%, 53%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Blue violet.

Colour values

#553AD4#553AD4
HEX#553AD4
RGBrgb(85, 58, 212)
RGB (0–1)0.3333, 0.2275, 0.8314
RGB percentages33.3%, 22.7%, 83.1%
HSLhsl(250.5, 64.2%, 52.9%)
HSV / HSBhsv(250.5, 72.6%, 83.1%)
CMYK59.9%, 72.6%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,585,620
CSS custom property--colour: #553AD4;

Brightness & contrast

Relative luminance0.09711WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.14:1
Contrast with white7.14:1WCAG normal text: AAA
Contrast with black2.94:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#AAC52B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005DD8no red cones; affects about 1% of men; ΔE 27.9 from the original
Deuteranopia#0052D1no green cones; the most common form, about 1% of men; ΔE 22.7 from the original
Tritanopia#006584no blue cones; rare, and affects men and women equally; ΔE 83.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.14:1WCAG large text: AAA
Contrast with black, large text2.94:1WCAG large text: Fail

Named colours

Blue violet · ΔE 17.9Dark orchid · ΔE 20.3Medium slateblue · ΔE 21.1Dark blue · ΔE 23.5Dark violet · ΔE 24.2Slate blue · ΔE 25.2
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 17.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B9D43A
Analogous#3A6CD4, #A23AD4
Triadic#D4553A, #3AD455
Split complementary#D4A23A, #6CD43A
Tetradic#D43A6C, #B9D43A, #3AD4A2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5E1F9
Lighter +30%#C1B8EF
Lighter +20%#9D8EE6
Lighter +10%#7964DD
Darker −10%#4027B4
Darker −20%#311E8A
Darker −30%#221560
Darker −40%#130C36
More saturated +25%#421CF2
Less saturated −25%#6858B6

Channel breakdown

R85
G58
B212
Red85 (33.3%)
Green58 (22.7%)
Blue212 (83.1%)
Hue250.52°
Saturation (HSL)64.17%
Lightness52.94%
Dominant channelBlue
Hex per channelR 55 · G 3A · B D4

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Every value on this page was computed from “553ad4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.