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Recognised as Colour

#4F40BF

  • #4F40BF
  • Blue
  • Dark
  • Nearest: Slate blue

#4F40BF is a blue with RGB values 79, 64, 191 and HSL 247°, 50%, 50%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#4F40BF#4F40BF
HEX#4F40BF
RGBrgb(79, 64, 191)
RGB (0–1)0.3098, 0.251, 0.749
RGB percentages31%, 25.1%, 74.9%
HSLhsl(247.1, 49.8%, 50%)
HSV / HSBhsv(247.1, 66.5%, 74.9%)
CMYK58.6%, 66.5%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,193,919
CSS custom property--colour: #4F40BF;

Brightness & contrast

Relative luminance0.09091WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.45:1
Contrast with white7.45:1WCAG normal text: AAA
Contrast with black2.82:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#B0BF40

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059C3no red cones; affects about 1% of men; ΔE 22.5 from the original
Deuteranopia#0050BDno green cones; the most common form, about 1% of men; ΔE 18.5 from the original
Tritanopia#04617Ano blue cones; rare, and affects men and women equally; ΔE 71.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.45:1WCAG large text: AAA
Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Slate blue · ΔE 13Medium slateblue · ΔE 16Rebecca purple · ΔE 17.8Royal blue · ΔE 19.7Indigo · ΔE 21.6Dark blue · ΔE 23.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 12.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B0BF40
Analogous#4071BF, #8E40BF
Triadic#BF4F40, #40BF4F
Split complementary#BF8E40, #71BF40
Tetradic#BF4071, #B0BF40, #40BF8E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCD9F2
Lighter +30%#B9B3E5
Lighter +20%#958CD9
Lighter +10%#7266CC
Darker −10%#3F3399
Darker −20%#2F2673
Darker −30%#201A4C
Darker −40%#100D26
More saturated +25%#3720DF
Less saturated −25%#67609F

Channel breakdown

R79
G64
B191
Red79 (31%)
Green64 (25.1%)
Blue191 (74.9%)
Hue247.09°
Saturation (HSL)49.8%
Lightness50%
Dominant channelBlue
Hex per channelR 4F · G 40 · B BF

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Every value on this page was computed from “4f40bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.