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Recognised as Colour

#427FC1

  • #427FC1
  • Blue
  • Dark
  • Nearest: Steel blue

#427FC1 is a blue with RGB values 66, 127, 193 and HSL 211°, 51%, 51%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#427FC1#427FC1
HEX#427FC1
RGBrgb(66, 127, 193)
RGB (0–1)0.2588, 0.498, 0.7569
RGB percentages25.9%, 49.8%, 75.7%
HSLhsl(211.2, 50.6%, 50.8%)
HSV / HSBhsv(211.2, 65.8%, 75.7%)
CMYK65.8%, 34.2%, 0%, 24.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,358,081
CSS custom property--colour: #427FC1;

Brightness & contrast

Relative luminance0.20187WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.04:1
Contrast with white4.17:1WCAG normal text: Fail
Contrast with black5.04:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#BD803E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6283C4no red cones; affects about 1% of men; ΔE 6.6 from the original
Deuteranopia#5077C0no green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#008E97no blue cones; rare, and affects men and women equally; ΔE 39.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.17:1WCAG large text: AA
Contrast with black, large text5.04:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.8Cornflower blue · ΔE 15.5Dodgerblue · ΔE 25.7Deep skyblue · ΔE 28.1Light slate grey · ΔE 29.7Slate grey · ΔE 30
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.8, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C18442
Analogous#42BFC1, #4442C1
Triadic#C1427F, #7FC142
Split complementary#C14442, #BFC142
Tetradic#C142BF, #C18442, #42C144

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCE7F3
Lighter +30%#B5CDE7
Lighter +20%#8FB3DA
Lighter +10%#6899CE
Darker −10%#33669D
Darker −20%#274D76
Darker −30%#1A3450
Darker −40%#0E1B29
More saturated +25%#237EE0
Less saturated −25%#6180A2

Channel breakdown

R66
G127
B193
Red66 (25.9%)
Green127 (49.8%)
Blue193 (75.7%)
Hue211.18°
Saturation (HSL)50.6%
Lightness50.78%
Dominant channelBlue
Hex per channelR 42 · G 7F · B C1

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Every value on this page was computed from “427fc1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.