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Recognised as Colour

#4587D8

  • #4587D8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4587D8 is a blue with RGB values 69, 135, 216 and HSL 213°, 65%, 56%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4587D8#4587D8
HEX#4587D8
RGBrgb(69, 135, 216)
RGB (0–1)0.2706, 0.5294, 0.8471
RGB percentages27.1%, 52.9%, 84.7%
HSLhsl(213.1, 65.3%, 55.9%)
HSV / HSBhsv(213.1, 68.1%, 84.7%)
CMYK68.1%, 37.5%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,556,760
CSS custom property--colour: #4587D8;

Brightness & contrast

Relative luminance0.23551WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.71:1
Contrast with white3.68:1WCAG normal text: Fail
Contrast with black5.71:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#BA7827

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#628DDBno red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#4D7FD6no green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#009AA5no blue cones; rare, and affects men and women equally; ΔE 47.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.68:1WCAG large text: AA
Contrast with black, large text5.71:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 7.8Dodgerblue · ΔE 16.9Steel blue · ΔE 18.3Royal blue · ΔE 28.6Deep skyblue · ΔE 28.8Medium purple · ΔE 31.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 7.76, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D89645
Analogous#45D1D8, #4D45D8
Triadic#D84587, #87D845
Split complementary#D84C45, #D1D845
Tetradic#D845D1, #D89645, #45D84D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEF4FB
Lighter +30%#C3D9F3
Lighter +20%#99BDEA
Lighter +10%#6FA2E1
Darker −10%#296DC1
Darker −20%#205597
Darker −30%#173E6D
Darker −40%#0E2643
More saturated +25%#2984F4
Less saturated −25%#618ABC

Channel breakdown

R69
G135
B216
Red69 (27.1%)
Green135 (52.9%)
Blue216 (84.7%)
Hue213.06°
Saturation (HSL)65.33%
Lightness55.88%
Dominant channelBlue
Hex per channelR 45 · G 87 · B D8

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Every value on this page was computed from “4587d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.