Nerdulator> put something in

Recognised as Colour

#378BF9

  • #378BF9
  • Blue
  • Dark
  • Nearest: Dodgerblue

#378BF9 is a blue with RGB values 55, 139, 249 and HSL 214°, 94%, 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

#378BF9#378BF9
HEX#378BF9
RGBrgb(55, 139, 249)
RGB (0–1)0.2157, 0.5451, 0.9765
RGB percentages21.6%, 54.5%, 97.6%
HSLhsl(214, 94.2%, 59.6%)
HSV / HSBhsv(214, 77.9%, 97.6%)
CMYK77.9%, 44.2%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,640,313
CSS custom property--colour: #378BF9;

Brightness & contrast

Relative luminance0.26117WCAG 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 6.22:1
Contrast with white3.37:1WCAG normal text: Fail
Contrast with black6.22:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#C87406

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5295FDno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#2784F7no green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#00A5B6no blue cones; rare, and affects men and women equally; ΔE 60.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.37:1WCAG large text: AA
Contrast with black, large text6.22:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 3.3Cornflower blue · ΔE 13.7Royal blue · ΔE 17.3Slate blue · ΔE 27Medium purple · ΔE 27.1Medium slateblue · ΔE 29.2
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 3.3, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F9A537
Analogous#37ECF9, #4437F9
Triadic#F9378B, #8BF937
Split complementary#F94437, #ECF937
Tetradic#F937EC, #F9A537, #37F944

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFEFF
Lighter +30%#CCE1FD
Lighter +20%#9AC4FC
Lighter +10%#69A8FA
Darker −10%#076FF6
Darker −20%#0658C4
Darker −30%#044293
Darker −40%#032C61
More saturated +25%#318AFF
Less saturated −25%#518EDF

Channel breakdown

R55
G139
B249
Red55 (21.6%)
Green139 (54.5%)
Blue249 (97.6%)
Hue214.02°
Saturation (HSL)94.17%
Lightness59.61%
Dominant channelBlue
Hex per channelR 37 · G 8B · B F9

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 “378bf9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.