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Recognised as Colour

#5780CD

  • #5780CD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5780CD is a blue with RGB values 87, 128, 205 and HSL 219°, 54%, 57%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5780CD#5780CD
HEX#5780CD
RGBrgb(87, 128, 205)
RGB (0–1)0.3412, 0.502, 0.8039
RGB percentages34.1%, 50.2%, 80.4%
HSLhsl(219.2, 54.1%, 57.3%)
HSV / HSBhsv(219.2, 57.6%, 80.4%)
CMYK57.6%, 37.6%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,734,605
CSS custom property--colour: #5780CD;

Brightness & contrast

Relative luminance0.21872WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.37:1
Contrast with white3.91:1WCAG normal text: Fail
Contrast with black5.37:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#A87F32

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6087D0no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#517CCBno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#00919Dno blue cones; rare, and affects men and women equally; ΔE 46.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.91:1WCAG large text: AA
Contrast with black, large text5.37:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.5Steel blue · ΔE 17.7Dodgerblue · ΔE 20Royal blue · ΔE 28Medium purple · ΔE 28.6Dark slateblue · ΔE 28.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.55, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDA457
Analogous#57BBCD, #6957CD
Triadic#CD5780, #80CD57
Split complementary#CD6957, #BBCD57
Tetradic#CD57BB, #CDA457, #57CD69

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4F7FC
Lighter +30%#CDD9F0
Lighter +20%#A6BBE4
Lighter +10%#7E9ED9
Darker −10%#3765BA
Darker −20%#2C4F92
Darker −30%#203A6B
Darker −40%#142544
More saturated +25%#3C78E8
Less saturated −25%#7288B2

Channel breakdown

R87
G128
B205
Red87 (34.1%)
Green128 (50.2%)
Blue205 (80.4%)
Hue219.15°
Saturation (HSL)54.13%
Lightness57.25%
Dominant channelBlue
Hex per channelR 57 · G 80 · B CD

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Every value on this page was computed from “5780cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.