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Recognised as Colour

#5575DD

  • #5575DD
  • Blue
  • Dark
  • Nearest: Royal blue

#5575DD is a blue with RGB values 85, 117, 221 and HSL 226°, 67%, 60%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#5575DD#5575DD
HEX#5575DD
RGBrgb(85, 117, 221)
RGB (0–1)0.3333, 0.4588, 0.8667
RGB percentages33.3%, 45.9%, 86.7%
HSLhsl(225.9, 66.7%, 60%)
HSV / HSBhsv(225.9, 61.5%, 86.7%)
CMYK61.5%, 47.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,600,733
CSS custom property--colour: #5575DD;

Brightness & contrast

Relative luminance0.19874WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.97:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.97:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#AA8A22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4182E1no red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#2875DBno green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#008D9Eno blue cones; rare, and affects men and women equally; ΔE 60 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.97:1WCAG large text: AAA

Named colours

Royal blue · ΔE 11Dodgerblue · ΔE 14.6Slate blue · ΔE 16.8Cornflower blue · ΔE 16.9Medium purple · ΔE 17.9Medium slateblue · ΔE 22.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDBD55
Analogous#55B9DD, #7955DD
Triadic#DD5575, #75DD55
Split complementary#DD7955, #B9DD55
Tetradic#DD55B9, #DDBD55, #55DD79

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D5DDF7
Lighter +20%#AABAEE
Lighter +10%#7F97E5
Darker −10%#2A53D5
Darker −20%#2242AA
Darker −30%#193280
Darker −40%#112155
More saturated +25%#3B68F7
Less saturated −25%#6E83C3

Channel breakdown

R85
G117
B221
Red85 (33.3%)
Green117 (45.9%)
Blue221 (86.7%)
Hue225.88°
Saturation (HSL)66.67%
Lightness60%
Dominant channelBlue
Hex per channelR 55 · G 75 · B DD

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Every value on this page was computed from “5575dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.