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Recognised as Colour

#424DBF

  • #424DBF
  • Blue
  • Dark
  • Nearest: Slate blue

#424DBF is a blue with RGB values 66, 77, 191 and HSL 235°, 49%, 50%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#424DBF#424DBF
HEX#424DBF
RGBrgb(66, 77, 191)
RGB (0–1)0.2588, 0.302, 0.749
RGB percentages25.9%, 30.2%, 74.9%
HSLhsl(234.7, 49.4%, 50.4%)
HSV / HSBhsv(234.7, 65.4%, 74.9%)
CMYK65.4%, 59.7%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,345,279
CSS custom property--colour: #424DBF;

Brightness & contrast

Relative luminance0.10228WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.9:1
Contrast with white6.9:1WCAG normal text: AA
Contrast with black3.05:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#BDB240

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0060C3no red cones; affects about 1% of men; ΔE 17.2 from the original
Deuteranopia#0055BDno green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#00697Eno blue cones; rare, and affects men and women equally; ΔE 65.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.9:1WCAG large text: AAA
Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Slate blue · ΔE 8.8Royal blue · ΔE 11.9Medium slateblue · ΔE 17Rebecca purple · ΔE 18.6Medium purple · ΔE 20.7Dark slateblue · ΔE 21.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 8.83, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BFB442
Analogous#428BBF, #7642BF
Triadic#BF424D, #4DBF42
Split complementary#BF7642, #8BBF42
Tetradic#BF428B, #BFB442, #42BF76

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DADDF3
Lighter +30%#B4B9E6
Lighter +20%#8E95D9
Lighter +10%#6871CC
Darker −10%#343D9A
Darker −20%#272E74
Darker −30%#1A1F4E
Darker −40%#0D1028
More saturated +25%#2233DF
Less saturated −25%#62679F

Channel breakdown

R66
G77
B191
Red66 (25.9%)
Green77 (30.2%)
Blue191 (74.9%)
Hue234.72°
Saturation (HSL)49.41%
Lightness50.39%
Dominant channelBlue
Hex per channelR 42 · G 4D · B BF

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Every value on this page was computed from “424dbf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.