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Recognised as Colour

#39427B

  • #39427B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#39427B is a blue with RGB values 57, 66, 123 and HSL 232°, 37%, 35%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#39427B#39427B
HEX#39427B
RGBrgb(57, 66, 123)
RGB (0–1)0.2235, 0.2588, 0.4824
RGB percentages22.4%, 25.9%, 48.2%
HSLhsl(231.8, 36.7%, 35.3%)
HSV / HSBhsv(231.8, 53.7%, 48.2%)
CMYK53.7%, 46.3%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,752,571
CSS custom property--colour: #39427B;

Brightness & contrast

Relative luminance0.06196WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.38:1
Contrast with white9.38:1WCAG normal text: AAA
Contrast with black2.24:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#C6BD84

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2A497Dno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#23447Ano green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#1C4E58no blue cones; rare, and affects men and women equally; ΔE 35.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.38:1WCAG large text: AAA
Contrast with black, large text2.24:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.9Midnight blue · ΔE 27.8Steel blue · ΔE 28.8Rebecca purple · ΔE 32.2Cornflower blue · ΔE 35.9Slate blue · ΔE 36.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B7239
Analogous#39637B, #51397B
Triadic#7B3942, #427B39
Split complementary#7B5139, #637B39
Tetradic#7B3963, #7B7239, #397B51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9AFD7
Lighter +30%#868FC7
Lighter +20%#636FB7
Lighter +10%#49559E
Darker −10%#292F58
Darker −20%#191D35
Darker −30%#090A12
Darker −40%#000000
More saturated +25%#233292
Less saturated −25%#505265

Channel breakdown

R57
G66
B123
Red57 (22.4%)
Green66 (25.9%)
Blue123 (48.2%)
Hue231.82°
Saturation (HSL)36.67%
Lightness35.29%
Dominant channelBlue
Hex per channelR 39 · G 42 · B 7B

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Every value on this page was computed from “39427b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.