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Recognised as Colour

#424B97

  • #424B97
  • Blue
  • Dark
  • Nearest: Dark slateblue

#424B97 is a blue with RGB values 66, 75, 151 and HSL 234°, 39%, 43%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#424B97#424B97
HEX#424B97
RGBrgb(66, 75, 151)
RGB (0–1)0.2588, 0.2941, 0.5922
RGB percentages25.9%, 29.4%, 59.2%
HSLhsl(233.6, 39.2%, 42.5%)
HSV / HSBhsv(233.6, 56.3%, 59.2%)
CMYK56.3%, 50.3%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,344,727
CSS custom property--colour: #424B97;

Brightness & contrast

Relative luminance0.08425WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.82:1
Contrast with white7.82:1WCAG normal text: AAA
Contrast with black2.68:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#BDB468

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#26569Ano red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#194F95no green cones; the most common form, about 1% of men; ΔE 10.1 from the original
Tritanopia#155C6Ano blue cones; rare, and affects men and women equally; ΔE 45.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.82:1WCAG large text: AAA
Contrast with black, large text2.68:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 7.7Midnight blue · ΔE 23.5Rebecca purple · ΔE 23.8Slate blue · ΔE 24.5Royal blue · ΔE 26.6Medium purple · ΔE 27.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#978E42
Analogous#427697, #634297
Triadic#97424B, #4B9742
Split complementary#976342, #769742
Tetradic#974276, #978E42, #429763

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1C5E4
Lighter +30%#9EA3D4
Lighter +20%#7A82C5
Lighter +10%#5761B5
Darker −10%#323974
Darker −20%#232850
Darker −30%#13162D
Darker −40%#040409
More saturated +25%#2736B2
Less saturated −25%#5D607C

Channel breakdown

R66
G75
B151
Red66 (25.9%)
Green75 (29.4%)
Blue151 (59.2%)
Hue233.65°
Saturation (HSL)39.17%
Lightness42.55%
Dominant channelBlue
Hex per channelR 42 · G 4B · B 97

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Every value on this page was computed from “424b97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.