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Recognised as Colour

#3788F8

  • #3788F8
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3788F8 is a blue with RGB values 55, 136, 248 and HSL 215°, 93%, 59%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3788F8#3788F8
HEX#3788F8
RGBrgb(55, 136, 248)
RGB (0–1)0.2157, 0.5333, 0.9725
RGB percentages21.6%, 53.3%, 97.3%
HSLhsl(214.8, 93.2%, 59.4%)
HSV / HSBhsv(214.8, 77.8%, 97.3%)
CMYK77.8%, 45.2%, 0%, 2.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,639,544
CSS custom property--colour: #3788F8;

Brightness & contrast

Relative luminance0.25198WCAG 2.x, 0 is black and 1 is white
Perceived brightness137 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.04:1
Contrast with white3.48:1WCAG normal text: Fail
Contrast with black6.04:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#C87707

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C93FCno red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#1C81F6no green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#00A3B4no blue cones; rare, and affects men and women equally; ΔE 61.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.48:1WCAG large text: AA
Contrast with black, large text6.04:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 4.7Cornflower blue · ΔE 15.2Royal blue · ΔE 15.5Slate blue · ΔE 25.4Medium purple · ΔE 26.1Medium slateblue · ΔE 27.5
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 4.74, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F8A737
Analogous#37E8F8, #4737F8
Triadic#F83788, #88F837
Split complementary#F84737, #E9F837
Tetradic#F837E8, #F8A737, #37F847

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCFDFF
Lighter +30%#CBE0FD
Lighter +20%#9AC3FB
Lighter +10%#68A5FA
Darker −10%#096BF3
Darker −20%#0755C2
Darker −30%#054091
Darker −40%#032A60
More saturated +25%#3087FF
Less saturated −25%#518CDE

Channel breakdown

R55
G136
B248
Red55 (21.6%)
Green136 (53.3%)
Blue248 (97.3%)
Hue214.82°
Saturation (HSL)93.24%
Lightness59.41%
Dominant channelBlue
Hex per channelR 37 · G 88 · B F8

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Every value on this page was computed from “3788f8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.