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Recognised as Colour

#4788DA

  • #4788DA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4788DA is a blue with RGB values 71, 136, 218 and HSL 213°, 67%, 57%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4788DA#4788DA
HEX#4788DA
RGBrgb(71, 136, 218)
RGB (0–1)0.2784, 0.5333, 0.8549
RGB percentages27.8%, 53.3%, 85.5%
HSLhsl(213.5, 66.5%, 56.7%)
HSV / HSBhsv(213.5, 67.4%, 85.5%)
CMYK67.4%, 37.6%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,688,090
CSS custom property--colour: #4788DA;

Brightness & contrast

Relative luminance0.2401WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.8:1
Contrast with white3.62:1WCAG normal text: Fail
Contrast with black5.8:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#B87725

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#638EDDno red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#4E80D8no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#009BA6no blue cones; rare, and affects men and women equally; ΔE 48 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.62:1WCAG large text: AA
Contrast with black, large text5.8:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 7.1Dodgerblue · ΔE 16.3Steel blue · ΔE 18.9Royal blue · ΔE 28.2Deep skyblue · ΔE 28.9Medium purple · ΔE 31.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 7.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA9947
Analogous#47D1DA, #5047DA
Triadic#DA4788, #88DA47
Split complementary#DA5047, #D1DA47
Tetradic#DA47D1, #DA9947, #47DA50

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F6FC
Lighter +30%#C6DAF4
Lighter +20%#9CBFEB
Lighter +10%#71A3E3
Darker −10%#286EC6
Darker −20%#1F569C
Darker −30%#173F71
Darker −40%#0E2747
More saturated +25%#2B85F6
Less saturated −25%#638BBE

Channel breakdown

R71
G136
B218
Red71 (27.8%)
Green136 (53.3%)
Blue218 (85.5%)
Hue213.47°
Saturation (HSL)66.52%
Lightness56.67%
Dominant channelBlue
Hex per channelR 47 · G 88 · B DA

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Every value on this page was computed from “4788da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.