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Recognised as Colour

#424D89

  • #424D89
  • Blue
  • Dark
  • Nearest: Dark slateblue

#424D89 is a blue with RGB values 66, 77, 137 and HSL 231°, 35%, 40%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#424D89#424D89
HEX#424D89
RGBrgb(66, 77, 137)
RGB (0–1)0.2588, 0.302, 0.5373
RGB percentages25.9%, 30.2%, 53.7%
HSLhsl(230.7, 35%, 39.8%)
HSV / HSBhsv(230.7, 51.8%, 53.7%)
CMYK51.8%, 43.8%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,345,225
CSS custom property--colour: #424D89;

Brightness & contrast

Relative luminance0.08272WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.91:1
Contrast with white7.91:1WCAG normal text: AAA
Contrast with black2.65:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#BDB276

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#35548Bno red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#2E4E88no green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#245A64no blue cones; rare, and affects men and women equally; ΔE 36.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.91:1WCAG large text: AAA
Contrast with black, large text2.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.9Steel blue · ΔE 25.2Midnight blue · ΔE 29.9Cornflower blue · ΔE 31.2Rebecca purple · ΔE 31.9Slate blue · ΔE 33.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#897E42
Analogous#427189, #5B4289
Triadic#89424D, #4D8942
Split complementary#895B42, #708942
Tetradic#894271, #897E42, #42895B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9BFDE
Lighter +30%#979FCD
Lighter +20%#7580BC
Lighter +10%#5360AB
Darker −10%#313A67
Darker −20%#212644
Darker −30%#101322
Darker −40%#000000
More saturated +25%#293BA2
Less saturated −25%#5B5F70

Channel breakdown

R66
G77
B137
Red66 (25.9%)
Green77 (30.2%)
Blue137 (53.7%)
Hue230.7°
Saturation (HSL)34.98%
Lightness39.8%
Dominant channelBlue
Hex per channelR 42 · G 4D · B 89

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Every value on this page was computed from “424d89” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.