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Recognised as Colour

#378BF7

  • #378BF7
  • Blue
  • Dark
  • Nearest: Dodgerblue

#378BF7 is a blue with RGB values 55, 139, 247 and HSL 214°, 92%, 59%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#378BF7#378BF7
HEX#378BF7
RGBrgb(55, 139, 247)
RGB (0–1)0.2157, 0.5451, 0.9686
RGB percentages21.6%, 54.5%, 96.9%
HSLhsl(213.8, 92.3%, 59.2%)
HSV / HSBhsv(213.8, 77.7%, 96.9%)
CMYK77.7%, 43.7%, 0%, 3.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,640,311
CSS custom property--colour: #378BF7;

Brightness & contrast

Relative luminance0.25993WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.2:1
Contrast with white3.39:1WCAG normal text: Fail
Contrast with black6.2:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#C87408

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5395FBno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#2B83F5no green cones; the most common form, about 1% of men; ΔE 5.1 from the original
Tritanopia#00A5B5no blue cones; rare, and affects men and women equally; ΔE 59.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.39:1WCAG large text: AA
Contrast with black, large text6.2:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 3.3Cornflower blue · ΔE 12.7Royal blue · ΔE 18Medium purple · ΔE 27.3Slate blue · ΔE 27.4Medium slateblue · ΔE 30
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 3.32, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F7A337
Analogous#37EBF7, #4337F7
Triadic#F7378B, #8BF737
Split complementary#F74337, #EBF737
Tetradic#F737EB, #F7A337, #37F743

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FBFDFF
Lighter +30%#CAE0FD
Lighter +20%#99C4FB
Lighter +10%#68A7F9
Darker −10%#0A6FF1
Darker −20%#0858C0
Darker −30%#06428F
Darker −40%#042B5E
More saturated +25%#2F8AFF
Less saturated −25%#518EDD

Channel breakdown

R55
G139
B247
Red55 (21.6%)
Green139 (54.5%)
Blue247 (96.9%)
Hue213.75°
Saturation (HSL)92.31%
Lightness59.22%
Dominant channelBlue
Hex per channelR 37 · G 8B · B F7

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Every value on this page was computed from “378bf7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.