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Recognised as Colour

#3555AF

  • #3555AF
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3555AF is a blue with RGB values 53, 85, 175 and HSL 224°, 54%, 45%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3555AF#3555AF
HEX#3555AF
RGBrgb(53, 85, 175)
RGB (0–1)0.2078, 0.3333, 0.6863
RGB percentages20.8%, 33.3%, 68.6%
HSLhsl(224.3, 53.5%, 44.7%)
HSV / HSBhsv(224.3, 69.7%, 68.6%)
CMYK69.7%, 51.4%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,495,343
CSS custom property--colour: #3555AF;

Brightness & contrast

Relative luminance0.10349WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.84:1
Contrast with white6.84:1WCAG normal text: AA
Contrast with black3.07:1WCAG normal text: Fail
Greyscale equivalent#555555
Inverted#CAAA50

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E60B2no red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#0055ADno green cones; the most common form, about 1% of men; ΔE 5.7 from the original
Tritanopia#006A7Ano blue cones; rare, and affects men and women equally; ΔE 52.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.84:1WCAG large text: AAA
Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 14Royal blue · ΔE 18Slate blue · ΔE 19.2Medium purple · ΔE 24.2Rebecca purple · ΔE 24.7Cornflower blue · ΔE 25.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF8F35
Analogous#3592AF, #5235AF
Triadic#AF3555, #55AF35
Split complementary#AF5235, #92AF35
Tetradic#AF3592, #AF8F35, #35AF52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C3CEED
Lighter +30%#9CAEE1
Lighter +20%#758ED5
Lighter +10%#4E6EC9
Darker −10%#294288
Darker −20%#1D2F61
Darker −30%#111C3A
Darker −40%#060912
More saturated +25%#1947CC
Less saturated −25%#526393

Channel breakdown

R53
G85
B175
Red53 (20.8%)
Green85 (33.3%)
Blue175 (68.6%)
Hue224.26°
Saturation (HSL)53.51%
Lightness44.71%
Dominant channelBlue
Hex per channelR 35 · G 55 · B AF

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Every value on this page was computed from “3555af” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.