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Recognised as Colour

#393B57

  • #393B57
  • Blue
  • Dark
  • Nearest: Dark slate grey

#393B57 is a blue with RGB values 57, 59, 87 and HSL 236°, 21%, 28%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#393B57#393B57
HEX#393B57
RGBrgb(57, 59, 87)
RGB (0–1)0.2235, 0.2314, 0.3412
RGB percentages22.4%, 23.1%, 34.1%
HSLhsl(236, 20.8%, 28.2%)
HSV / HSBhsv(236, 34.5%, 34.1%)
CMYK34.5%, 32.2%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,750,743
CSS custom property--colour: #393B57;

Brightness & contrast

Relative luminance0.04686WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.84:1
Contrast with white10.84:1WCAG normal text: AAA
Contrast with black1.94:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#C6C4A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#333E58no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#313C56no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#314045no blue cones; rare, and affects men and women equally; ΔE 16.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.84:1WCAG large text: AAA
Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.4Dim grey · ΔE 26.1Slate grey · ΔE 29.2Black · ΔE 31.7Light slate grey · ΔE 32Dark slateblue · ΔE 32
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#575539
Analogous#394A57, #463957
Triadic#57393B, #3B5739
Split complementary#574639, #4A5739
Tetradic#57394A, #575539, #395746

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9D9FBF
Lighter +30%#7E81AB
Lighter +20%#616595
Lighter +10%#4D5076
Darker −10%#252638
Darker −20%#111119
Darker −30%#000000
Darker −40%#000000
More saturated +25%#272B69
Less saturated −25%#484848

Channel breakdown

R57
G59
B87
Red57 (22.4%)
Green59 (23.1%)
Blue87 (34.1%)
Hue236°
Saturation (HSL)20.83%
Lightness28.24%
Dominant channelBlue
Hex per channelR 39 · G 3B · B 57

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Every value on this page was computed from “393b57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.