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Recognised as Colour

#427CDA

  • #427CDA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#427CDA is a blue with RGB values 66, 124, 218 and HSL 217°, 67%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#427CDA#427CDA
HEX#427CDA
RGBrgb(66, 124, 218)
RGB (0–1)0.2588, 0.4863, 0.8549
RGB percentages25.9%, 48.6%, 85.5%
HSLhsl(217.1, 67.3%, 55.7%)
HSV / HSBhsv(217.1, 69.7%, 85.5%)
CMYK69.7%, 43.1%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,357,338
CSS custom property--colour: #427CDA;

Brightness & contrast

Relative luminance0.20636WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.13:1
Contrast with white4.1:1WCAG normal text: Fail
Contrast with black5.13:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#BD8325

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E85DEno red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#3377D8no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#0092A0no blue cones; rare, and affects men and women equally; ΔE 54 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.1:1WCAG large text: AA
Contrast with black, large text5.13:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.7Dodgerblue · ΔE 12Royal blue · ΔE 18.9Medium purple · ΔE 25.2Slate blue · ΔE 25.4Steel blue · ΔE 26.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DAA042
Analogous#42C8DA, #5442DA
Triadic#DA427C, #7CDA42
Split complementary#DA5442, #C8DA42
Tetradic#DA42C8, #DAA042, #42DA54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF2FB
Lighter +30%#C2D5F3
Lighter +20%#97B7EB
Lighter +10%#6D9AE2
Darker −10%#2662C3
Darker −20%#1E4D98
Darker −30%#15376E
Darker −40%#0D2243
More saturated +25%#2675F6
Less saturated −25%#5E83BE

Channel breakdown

R66
G124
B218
Red66 (25.9%)
Green124 (48.6%)
Blue218 (85.5%)
Hue217.11°
Saturation (HSL)67.26%
Lightness55.69%
Dominant channelBlue
Hex per channelR 42 · G 7C · B DA

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Every value on this page was computed from “427cda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.