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Recognised as Colour

#4040F0

  • #4040F0
  • Blue
  • Dark
  • Nearest: Blue violet

#4040F0 is a blue with RGB values 64, 64, 240 and HSL 240°, 85%, 60%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#4040F0#4040F0
HEX#4040F0
RGBrgb(64, 64, 240)
RGB (0–1)0.251, 0.251, 0.9412
RGB percentages25.1%, 25.1%, 94.1%
HSLhsl(240, 85.4%, 59.6%)
HSV / HSBhsv(240, 73.3%, 94.1%)
CMYK73.3%, 73.3%, 0%, 5.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,210,928
CSS custom property--colour: #4040F0;

Brightness & contrast

Relative luminance0.11048WCAG 2.x, 0 is black and 1 is white
Perceived brightness101 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.54:1
Contrast with white6.54:1WCAG normal text: AA
Contrast with black3.21:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#BFBF0F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0066F5no red cones; affects about 1% of men; ΔE 27.2 from the original
Deuteranopia#0055EDno green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#007395no blue cones; rare, and affects men and women equally; ΔE 93.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.54:1WCAG large text: AAA
Contrast with black, large text3.21:1WCAG large text: AA

Named colours

Blue violet · ΔE 18.8Medium blue · ΔE 19.1Dark violet · ΔE 26.5Dark orchid · ΔE 28.8Medium slateblue · ΔE 29.1Dark blue · ΔE 31.5
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 18.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F0F040
Analogous#4098F0, #9840F0
Triadic#F04040, #40F040
Split complementary#F09840, #98F040
Tetradic#F04098, #F0F040, #40F098

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFDFF
Lighter +30%#CECEFB
Lighter +20%#9F9FF7
Lighter +10%#6F6FF4
Darker −10%#1212EB
Darker −20%#0F0FBB
Darker −30%#0B0B8C
Darker −40%#07075D
More saturated +25%#3131FF
Less saturated −25%#5A5AD6

Channel breakdown

R64
G64
B240
Red64 (25.1%)
Green64 (25.1%)
Blue240 (94.1%)
Hue240°
Saturation (HSL)85.44%
Lightness59.61%
Dominant channelBlue
Hex per channelR 40 · G 40 · B F0

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Every value on this page was computed from “4040f0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.