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Colour

#5559DD

  • #5559DD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#5559DD is a blue with RGB values 85, 89, 221 and HSL 238°, 67%, 60%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#5559DD#5559DD
HEX#5559DD
RGBrgb(85, 89, 221)
RGB (0–1)0.3333, 0.349, 0.8667
RGB percentages33.3%, 34.9%, 86.7%
HSLhsl(238.2, 66.7%, 60%)
HSV / HSBhsv(238.2, 61.5%, 86.7%)
CMYK61.5%, 59.7%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,593,565
CSS custom property--colour: #5559DD;

Brightness & contrast

Relative luminance0.14297WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.44:1
Contrast with white5.44:1WCAG normal text: AA
Contrast with black3.86:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#AAA622

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070E1no red cones; affects about 1% of men; ΔE 21.2 from the original
Deuteranopia#0064DAno green cones; the most common form, about 1% of men; ΔE 15.7 from the original
Tritanopia#007992no blue cones; rare, and affects men and women equally; ΔE 73.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.44:1WCAG large text: AAA
Contrast with black, large text3.86:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 8.6Slate blue · ΔE 10.5Royal blue · ΔE 12.3Medium purple · ΔE 20.8Rebecca purple · ΔE 24.6Dark orchid · ΔE 28.6
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 8.64, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDD955
Analogous#559DDD, #9555DD
Triadic#DD5559, #59DD55
Split complementary#DD9555, #9DDD55
Tetradic#DD559D, #DDD955, #55DD95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D5D6F7
Lighter +20%#AAACEE
Lighter +10%#7F82E5
Darker −10%#2A2FD5
Darker −20%#2226AA
Darker −30%#191C80
Darker −40%#111355
More saturated +25%#3B41F7
Less saturated −25%#6E71C3

Channel breakdown

R85
G89
B221
Red85 (33.3%)
Green89 (34.9%)
Blue221 (86.7%)
Hue238.24°
Saturation (HSL)66.67%
Lightness60%
Dominant channelBlue
Hex per channelR 55 · G 59 · B DD

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Every value on this page was computed from “5559dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.