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Recognised as Colour

#393F4A

  • #393F4A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#393F4A is a blue with RGB values 57, 63, 74 and HSL 219°, 13%, 26%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#393F4A#393F4A
HEX#393F4A
RGBrgb(57, 63, 74)
RGB (0–1)0.2235, 0.2471, 0.2902
RGB percentages22.4%, 24.7%, 29%
HSLhsl(218.8, 13%, 25.7%)
HSV / HSBhsv(218.8, 23%, 29%)
CMYK23%, 14.9%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,751,754
CSS custom property--colour: #393F4A;

Brightness & contrast

Relative luminance0.04919WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.59:1
Contrast with white10.59:1WCAG normal text: AAA
Contrast with black1.98:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#C6C0B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3C404Bno red cones; affects about 1% of men; ΔE 1 from the original
Deuteranopia#3A3E4Ano green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#354143no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.59:1WCAG large text: AAA
Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.5Dim grey · ΔE 19.4Slate grey · ΔE 26.6Black · ΔE 27.6Gray · ΔE 28.1Light slate grey · ΔE 29.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A4439
Analogous#39484A, #3B394A
Triadic#4A393F, #3F4A39
Split complementary#4A3C39, #484A39
Tetradic#4A3948, #4A4439, #394A3C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CA4B3
Lighter +30%#7F8A9D
Lighter +20%#657084
Lighter +10%#4F5867
Darker −10%#23262D
Darker −20%#0D0E10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#293A5A
Less saturated −25%#424242

Channel breakdown

R57
G63
B74
Red57 (22.4%)
Green63 (24.7%)
Blue74 (29%)
Hue218.82°
Saturation (HSL)12.98%
Lightness25.69%
Dominant channelBlue
Hex per channelR 39 · G 3F · B 4A

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Every value on this page was computed from “393f4a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.