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Recognised as Colour

#3918DB

  • #3918DB
  • Blue
  • Dark
  • Nearest: Medium blue

#3918DB is a blue with RGB values 57, 24, 219 and HSL 250°, 80%, 48%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#3918DB#3918DB
HEX#3918DB
RGBrgb(57, 24, 219)
RGB (0–1)0.2235, 0.0941, 0.8588
RGB percentages22.4%, 9.4%, 85.9%
HSLhsl(250.2, 80.2%, 47.6%)
HSV / HSBhsv(250.2, 89%, 85.9%)
CMYK74%, 89%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,741,915
CSS custom property--colour: #3918DB;

Brightness & contrast

Relative luminance0.06638WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.02:1
Contrast with white9.02:1WCAG normal text: AAA
Contrast with black2.33:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#C6E724

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051E0no red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#0040D8no green cones; the most common form, about 1% of men; ΔE 24.1 from the original
Tritanopia#005D82no blue cones; rare, and affects men and women equally; ΔE 98.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.02:1WCAG large text: AAA
Contrast with black, large text2.33:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.3Blue violet · ΔE 18.9Blue · ΔE 22.3Dark violet · ΔE 23.2Dark blue · ΔE 31Dark orchid · ΔE 32
Nearest named CSS colourMedium blue (#0000CD)ΔE 6.33, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BADB18
Analogous#1858DB, #9B18DB
Triadic#DB3918, #18DB39
Split complementary#DB9B18, #58DB18
Tetradic#DB1858, #BADB18, #18DB9B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFC6F9
Lighter +30%#A898F4
Lighter +20%#816AEF
Lighter +10%#5A3CEA
Darker −10%#2D13AD
Darker −20%#210E7F
Darker −30%#150951
Darker −40%#090423
More saturated +25%#2900F3
Less saturated −25%#4D36BD

Channel breakdown

R57
G24
B219
Red57 (22.4%)
Green24 (9.4%)
Blue219 (85.9%)
Hue250.15°
Saturation (HSL)80.25%
Lightness47.65%
Dominant channelBlue
Hex per channelR 39 · G 18 · B DB

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Every value on this page was computed from “3918db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.