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Recognised as Colour

#39517F

  • #39517F
  • Blue
  • Dark
  • Nearest: Steel blue

#39517F is a blue with RGB values 57, 81, 127 and HSL 219°, 38%, 36%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#39517F#39517F
HEX#39517F
RGBrgb(57, 81, 127)
RGB (0–1)0.2235, 0.3176, 0.498
RGB percentages22.4%, 31.8%, 49.8%
HSLhsl(219.4, 38%, 36.1%)
HSV / HSBhsv(219.4, 55.1%, 49.8%)
CMYK55.1%, 36.2%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,756,415
CSS custom property--colour: #39517F;

Brightness & contrast

Relative luminance0.08287WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.9:1
Contrast with white7.9:1WCAG normal text: AAA
Contrast with black2.66:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#C6AE80

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F5581no red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#364E7Eno green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#145B62no blue cones; rare, and affects men and women equally; ΔE 30 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.9:1WCAG large text: AAA
Contrast with black, large text2.66:1WCAG large text: Fail

Named colours

Steel blue · ΔE 20.5Dark slateblue · ΔE 25Slate grey · ΔE 26.8Light slate grey · ΔE 28.7Dark slate grey · ΔE 30.4Dim grey · ΔE 30.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F6739
Analogous#39747F, #44397F
Triadic#7F3951, #517F39
Split complementary#7F4439, #747F39
Tetradic#7F3974, #7F6739, #397F44

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABBBD9
Lighter +30%#889EC9
Lighter +20%#6482BA
Lighter +10%#4967A2
Darker −10%#293B5C
Darker −20%#192439
Darker −30%#0A0E15
Darker −40%#000000
More saturated +25%#224A96
Less saturated −25%#505868

Channel breakdown

R57
G81
B127
Red57 (22.4%)
Green81 (31.8%)
Blue127 (49.8%)
Hue219.43°
Saturation (HSL)38.04%
Lightness36.08%
Dominant channelBlue
Hex per channelR 39 · G 51 · B 7F

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Every value on this page was computed from “39517f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.