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Recognised as Colour

#433F9B

  • #433F9B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#433F9B is a blue with RGB values 67, 63, 155 and HSL 243°, 42%, 43%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#433F9B#433F9B
HEX#433F9B
RGBrgb(67, 63, 155)
RGB (0–1)0.2627, 0.2471, 0.6078
RGB percentages26.3%, 24.7%, 60.8%
HSLhsl(242.6, 42.2%, 42.7%)
HSV / HSBhsv(242.6, 59.4%, 60.8%)
CMYK56.8%, 59.4%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,407,195
CSS custom property--colour: #433F9B;

Brightness & contrast

Relative luminance0.07115WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.67:1
Contrast with white8.67:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#BCC064

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004F9Eno red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#004899no green cones; the most common form, about 1% of men; ΔE 14.6 from the original
Tritanopia#165566no blue cones; rare, and affects men and women equally; ΔE 54.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.67:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8.4Rebecca purple · ΔE 14.3Midnight blue · ΔE 16.5Slate blue · ΔE 17Royal blue · ΔE 22.2Medium purple · ΔE 24.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.41, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#979B3F
Analogous#3F699B, #713F9B
Triadic#9B433F, #3F9B43
Split complementary#9B713F, #699B3F
Tetradic#9B3F69, #979B3F, #3F9B71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2C0E6
Lighter +30%#9F9CD7
Lighter +20%#7B78C8
Lighter +10%#5854B9
Darker −10%#333077
Darker −20%#242252
Darker −30%#14132E
Darker −40%#04040A
More saturated +25%#2A24B6
Less saturated −25%#5C5A80

Channel breakdown

R67
G63
B155
Red67 (26.3%)
Green63 (24.7%)
Blue155 (60.8%)
Hue242.61°
Saturation (HSL)42.2%
Lightness42.75%
Dominant channelBlue
Hex per channelR 43 · G 3F · B 9B

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Every value on this page was computed from “433f9b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.