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Recognised as Colour

#5681CD

  • #5681CD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5681CD is a blue with RGB values 86, 129, 205 and HSL 218°, 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

#5681CD#5681CD
HEX#5681CD
RGBrgb(86, 129, 205)
RGB (0–1)0.3373, 0.5059, 0.8039
RGB percentages33.7%, 50.6%, 80.4%
HSLhsl(218.3, 54.3%, 57.1%)
HSV / HSBhsv(218.3, 58%, 80.4%)
CMYK58%, 37.1%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,669,325
CSS custom property--colour: #5681CD;

Brightness & contrast

Relative luminance0.22087WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.42:1
Contrast with white3.88:1WCAG normal text: Fail
Contrast with black5.42:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#A97E32

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6187D0no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#527CCBno green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#00929Dno blue cones; rare, and affects men and women equally; ΔE 46.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.88:1WCAG large text: AA
Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.6Steel blue · ΔE 16.8Dodgerblue · ΔE 20.4Royal blue · ΔE 28.9Medium purple · ΔE 29.5Dark slateblue · ΔE 29.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.63, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDA256
Analogous#56BCCD, #6756CD
Triadic#CD5681, #81CD56
Split complementary#CD6756, #BCCD56
Tetradic#CD56BC, #CDA256, #56CD67

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3F6FC
Lighter +30%#CCD9F0
Lighter +20%#A5BCE4
Lighter +10%#7D9ED9
Darker −10%#3766B9
Darker −20%#2B5092
Darker −30%#203B6A
Darker −40%#142543
More saturated +25%#3B79E8
Less saturated −25%#7189B2

Channel breakdown

R86
G129
B205
Red86 (33.7%)
Green129 (50.6%)
Blue205 (80.4%)
Hue218.32°
Saturation (HSL)54.34%
Lightness57.06%
Dominant channelBlue
Hex per channelR 56 · G 81 · B CD

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Every value on this page was computed from “5681cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.