Nerdulator> put something in

Recognised as Colour

#378AFC

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

#378AFC is a blue with RGB values 55, 138, 252 and HSL 215°, 97%, 60%. 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

#378AFC#378AFC
HEX#378AFC
RGBrgb(55, 138, 252)
RGB (0–1)0.2157, 0.5412, 0.9882
RGB percentages21.6%, 54.1%, 98.8%
HSLhsl(214.7, 97%, 60.2%)
HSV / HSBhsv(214.7, 78.2%, 98.8%)
CMYK78.2%, 45.2%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,640,060
CSS custom property--colour: #378AFC;

Brightness & contrast

Relative luminance0.26017WCAG 2.x, 0 is black and 1 is white
Perceived brightness139 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#C87503

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D95FFno red cones; affects about 1% of men; ΔE 6.6 from the original
Deuteranopia#1B83FAno green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#00A5B7no blue cones; rare, and affects men and women equally; ΔE 62.2 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 4.7Royal blue · ΔE 15.7Cornflower blue · ΔE 15.9Slate blue · ΔE 25.8Medium purple · ΔE 26.5Medium slateblue · ΔE 27.3
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 4.67, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FCA937
Analogous#37ECFC, #4737FC
Triadic#FC378A, #8AFC37
Split complementary#FC4737, #ECFC37
Tetradic#FC37EC, #FCA937, #37FC47

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#CEE2FE
Lighter +20%#9BC5FE
Lighter +10%#69A7FD
Darker −10%#056DFB
Darker −20%#0357CA
Darker −30%#024198
Darker −40%#022C65
More saturated +25%#348AFF
Less saturated −25%#508EE3

Channel breakdown

R55
G138
B252
Red55 (21.6%)
Green138 (54.1%)
Blue252 (98.8%)
Hue214.72°
Saturation (HSL)97.04%
Lightness60.2%
Dominant channelBlue
Hex per channelR 37 · G 8A · B FC

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

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