Nerdulator> put something in

Recognised as Colour

#393F56

  • #393F56
  • Blue
  • Dark
  • Nearest: Dark slate grey

#393F56 is a blue with RGB values 57, 63, 86 and HSL 228°, 20%, 28%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#393F56#393F56
HEX#393F56
RGBrgb(57, 63, 86)
RGB (0–1)0.2235, 0.2471, 0.3373
RGB percentages22.4%, 24.7%, 33.7%
HSLhsl(227.6, 20.3%, 28%)
HSV / HSBhsv(227.6, 33.7%, 33.7%)
CMYK33.7%, 26.7%, 0%, 66.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,751,766
CSS custom property--colour: #393F56;

Brightness & contrast

Relative luminance0.05097WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.4:1
Contrast with white10.4:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#C6C0A9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#384157no red cones; affects about 1% of men; ΔE 1.5 from the original
Deuteranopia#363F55no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#314347no blue cones; rare, and affects men and women equally; ΔE 13.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.4:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.4Dim grey · ΔE 23Slate grey · ΔE 26.8Light slate grey · ΔE 29.7Gray · ΔE 30.6Black · ΔE 30.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#565039
Analogous#394D56, #423956
Triadic#56393F, #3F5639
Split complementary#564239, #4E5639
Tetradic#56394E, #565039, #395642

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9DA4BE
Lighter +30%#7E87AA
Lighter +20%#626C93
Lighter +10%#4D5575
Darker −10%#252937
Darker −20%#101219
Darker −30%#000000
Darker −40%#000000
More saturated +25%#273568
Less saturated −25%#484848

Channel breakdown

R57
G63
B86
Red57 (22.4%)
Green63 (24.7%)
Blue86 (33.7%)
Hue227.59°
Saturation (HSL)20.28%
Lightness28.04%
Dominant channelBlue
Hex per channelR 39 · G 3F · B 56

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “393f56” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.