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Recognised as Colour

#393F71

  • #393F71
  • Blue
  • Dark
  • Nearest: Dark slateblue

#393F71 is a blue with RGB values 57, 63, 113 and HSL 234°, 33%, 33%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#393F71#393F71
HEX#393F71
RGBrgb(57, 63, 113)
RGB (0–1)0.2235, 0.2471, 0.4431
RGB percentages22.4%, 24.7%, 44.3%
HSLhsl(233.6, 32.9%, 33.3%)
HSV / HSBhsv(233.6, 49.6%, 44.3%)
CMYK49.6%, 44.2%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,751,793
CSS custom property--colour: #393F71;

Brightness & contrast

Relative luminance0.05617WCAG 2.x, 0 is black and 1 is white
Perceived brightness69 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.89:1
Contrast with white9.89:1WCAG normal text: AAA
Contrast with black2.12:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#C6C08E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2C4573no red cones; affects about 1% of men; ΔE 6.6 from the original
Deuteranopia#274170no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#244952no blue cones; rare, and affects men and women equally; ΔE 30.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.89:1WCAG large text: AAA
Contrast with black, large text2.12:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.6Steel blue · ΔE 29.3Midnight blue · ΔE 30.4Slate grey · ΔE 34.3Rebecca purple · ΔE 35.4Dark slate grey · ΔE 35.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#716B39
Analogous#395B71, #4F3971
Triadic#71393F, #3F7139
Split complementary#714F39, #5B7139
Tetradic#71395B, #716B39, #39714F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5A9D1
Lighter +30%#8389C0
Lighter +20%#6169AF
Lighter +10%#4A5293
Darker −10%#282C4F
Darker −20%#17192D
Darker −30%#06060B
Darker −40%#000000
More saturated +25%#242E86
Less saturated −25%#4E505C

Channel breakdown

R57
G63
B113
Red57 (22.4%)
Green63 (24.7%)
Blue113 (44.3%)
Hue233.57°
Saturation (HSL)32.94%
Lightness33.33%
Dominant channelBlue
Hex per channelR 39 · G 3F · B 71

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Every value on this page was computed from “393f71” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.