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Recognised as Colour

#284FFF

  • #284FFF
  • Blue
  • Dark
  • Nearest: Blue violet

#284FFF is a blue with RGB values 40, 79, 255 and HSL 229°, 100%, 58%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#284FFF#284FFF
HEX#284FFF
RGBrgb(40, 79, 255)
RGB (0–1)0.1569, 0.3098, 1
RGB percentages15.7%, 31%, 100%
HSLhsl(229.1, 100%, 57.8%)
HSV / HSBhsv(229.1, 84.3%, 100%)
CMYK84.3%, 69%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,641,919
CSS custom property--colour: #284FFF;

Brightness & contrast

Relative luminance0.13263WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.75:1
Contrast with white5.75:1WCAG normal text: AA
Contrast with black3.65:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#D7B000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070FFno red cones; affects about 1% of men; ΔE 25.9 from the original
Deuteranopia#005CFCno green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#0081A1no blue cones; rare, and affects men and women equally; ΔE 94.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.75:1WCAG large text: AAA
Contrast with black, large text3.65:1WCAG large text: AA

Named colours

Blue violet · ΔE 24.4Medium blue · ΔE 24.6Medium slateblue · ΔE 27.7Dark violet · ΔE 32.4Dark orchid · ΔE 33Royal blue · ΔE 34.9
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 24.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFD828
Analogous#28BBFF, #6C28FF
Triadic#FF284F, #4FFF28
Split complementary#FF6C28, #BBFF28
Tetradic#FF28BB, #FFD828, #28FF6C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4F6FF
Lighter +30%#C1CCFF
Lighter +20%#8EA2FF
Lighter +10%#5B79FF
Darker −10%#002CF4
Darker −20%#0023C1
Darker −30%#001A8E
Darker −40%#00115B
More saturated +25%#284FFF
Less saturated −25%#4360E4

Channel breakdown

R40
G79
B255
Red40 (15.7%)
Green79 (31%)
Blue255 (100%)
Hue229.12°
Saturation (HSL)100%
Lightness57.84%
Dominant channelBlue
Hex per channelR 28 · G 4F · B FF

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Every value on this page was computed from “284fff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.