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Recognised as Colour

#556EF6

  • #556EF6
  • Blue
  • Dark
  • Nearest: Medium slateblue

#556EF6 is a blue with RGB values 85, 110, 246 and HSL 231°, 90%, 65%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#556EF6#556EF6
HEX#556EF6
RGBrgb(85, 110, 246)
RGB (0–1)0.3333, 0.4314, 0.9647
RGB percentages33.3%, 43.1%, 96.5%
HSLhsl(230.7, 89.9%, 64.9%)
HSV / HSBhsv(230.7, 65.4%, 96.5%)
CMYK65.4%, 55.3%, 0%, 3.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,598,966
CSS custom property--colour: #556EF6;

Brightness & contrast

Relative luminance0.19737WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.95:1
Contrast with white4.24:1WCAG normal text: Fail
Contrast with black4.95:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#AA9109

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0082FBno red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#0074F3no green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#008FA7no blue cones; rare, and affects men and women equally; ΔE 75 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.24:1WCAG large text: AA
Contrast with black, large text4.95:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 9.6Royal blue · ΔE 9.8Slate blue · ΔE 14.9Medium purple · ΔE 21.5Dodgerblue · ΔE 25.7Rebecca purple · ΔE 31.7
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 9.62, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F6DD55
Analogous#55BEF6, #8D55F6
Triadic#F6556E, #6EF655
Split complementary#F68C55, #BFF655
Tetradic#F655BE, #F6DD55, #55F68C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E6EAFE
Lighter +20%#B6C1FB
Lighter +10%#8597F9
Darker −10%#2545F3
Darker −20%#0C2BD9
Darker −30%#0922A9
Darker −40%#061879
More saturated +25%#4C68FF
Less saturated −25%#6B7DE0

Channel breakdown

R85
G110
B246
Red85 (33.3%)
Green110 (43.1%)
Blue246 (96.5%)
Hue230.68°
Saturation (HSL)89.94%
Lightness64.9%
Dominant channelBlue
Hex per channelR 55 · G 6E · B F6

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Every value on this page was computed from “556ef6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.