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Recognised as Colour

#3F5980

  • #3F5980
  • Blue
  • Dark
  • Nearest: Steel blue

#3F5980 is a blue with RGB values 63, 89, 128 and HSL 216°, 34%, 37%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#3F5980#3F5980
HEX#3F5980
RGBrgb(63, 89, 128)
RGB (0–1)0.2471, 0.349, 0.502
RGB percentages24.7%, 34.9%, 50.2%
HSLhsl(216, 34%, 37.5%)
HSV / HSBhsv(216, 50.8%, 50.2%)
CMYK50.8%, 30.5%, 0%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,151,680
CSS custom property--colour: #3F5980;

Brightness & contrast

Relative luminance0.0976WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.11:1
Contrast with white7.11:1WCAG normal text: AAA
Contrast with black2.95:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#C0A67F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A5B82no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#42557Fno green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#226267no blue cones; rare, and affects men and women equally; ΔE 25.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.11:1WCAG large text: AAA
Contrast with black, large text2.95:1WCAG large text: Fail

Named colours

Steel blue · ΔE 17.8Slate grey · ΔE 21.5Light slate grey · ΔE 23.5Dim grey · ΔE 26Dark slate grey · ΔE 26Gray · ΔE 29.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#80663F
Analogous#3F7A80, #453F80
Triadic#803F59, #59803F
Split complementary#80463F, #7A803F
Tetradic#803F7A, #80663F, #3F8046

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2C2D9
Lighter +30%#90A6C8
Lighter +20%#6E8BB7
Lighter +10%#5071A2
Darker −10%#2E415E
Darker −20%#1D293C
Darker −30%#0D1219
Darker −40%#000000
More saturated +25%#275498
Less saturated −25%#575E68

Channel breakdown

R63
G89
B128
Red63 (24.7%)
Green89 (34.9%)
Blue128 (50.2%)
Hue216°
Saturation (HSL)34.03%
Lightness37.45%
Dominant channelBlue
Hex per channelR 3F · G 59 · B 80

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Every value on this page was computed from “3f5980” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.