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Recognised as Colour

#1284EF

  • #1284EF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1284EF is a blue with RGB values 18, 132, 239 and HSL 209°, 87%, 50%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1284EF#1284EF
HEX#1284EF
RGBrgb(18, 132, 239)
RGB (0–1)0.0706, 0.5176, 0.9373
RGB percentages7.1%, 51.8%, 93.7%
HSLhsl(209, 87.4%, 50.4%)
HSV / HSBhsv(209, 92.5%, 93.7%)
CMYK92.5%, 44.8%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,213,679
CSS custom property--colour: #1284EF;

Brightness & contrast

Relative luminance0.22863WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.57:1
Contrast with white3.77:1WCAG normal text: Fail
Contrast with black5.57:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#ED7B10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#498DF3no red cones; affects about 1% of men; ΔE 5.9 from the original
Deuteranopia#0D7BEDno green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#009EAEno blue cones; rare, and affects men and women equally; ΔE 58.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.77:1WCAG large text: AA
Contrast with black, large text5.57:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 4.8Cornflower blue · ΔE 14.3Royal blue · ΔE 17.5Slate blue · ΔE 27.4Medium purple · ΔE 28.6Medium slateblue · ΔE 30.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 4.8, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF7D12
Analogous#12EFEC, #1215EF
Triadic#EF1284, #84EF12
Split complementary#EF1215, #EFEC12
Tetradic#EC12EF, #EF7D12, #15EF12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1E7FC
Lighter +30%#A1CEF9
Lighter +20%#72B6F5
Lighter +10%#429DF2
Darker −10%#0D6AC1
Darker −20%#0A5091
Darker −30%#073561
Darker −40%#031B32
More saturated +25%#0285FF
Less saturated −25%#3283CF

Channel breakdown

R18
G132
B239
Red18 (7.1%)
Green132 (51.8%)
Blue239 (93.7%)
Hue209.05°
Saturation (HSL)87.35%
Lightness50.39%
Dominant channelBlue
Hex per channelR 12 · G 84 · B EF

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Every value on this page was computed from “1284ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.