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Recognised as Colour

#2F427F

  • #2F427F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F427F is a blue with RGB values 47, 66, 127 and HSL 226°, 46%, 34%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F427F#2F427F
HEX#2F427F
RGBrgb(47, 66, 127)
RGB (0–1)0.1843, 0.2588, 0.498
RGB percentages18.4%, 25.9%, 49.8%
HSLhsl(225.8, 46%, 34.1%)
HSV / HSBhsv(225.8, 63%, 49.8%)
CMYK63%, 48%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,097,215
CSS custom property--colour: #2F427F;

Brightness & contrast

Relative luminance0.06033WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.52:1
Contrast with white9.52:1WCAG normal text: AAA
Contrast with black2.21:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#D0BD80

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#254981no red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#18427Eno green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#00505Ano blue cones; rare, and affects men and women equally; ΔE 39.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.52:1WCAG large text: AAA
Contrast with black, large text2.21:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.1Midnight blue · ΔE 26.4Steel blue · ΔE 29Rebecca purple · ΔE 31.8Slate blue · ΔE 34.9Cornflower blue · ΔE 34.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F6C2F
Analogous#2F6A7F, #442F7F
Triadic#7F2F42, #427F2F
Split complementary#7F442F, #6A7F2F
Tetradic#7F2F6A, #7F6C2F, #2F7F44

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9FADDB
Lighter +30%#798DCE
Lighter +20%#546EC0
Lighter +10%#3D55A4
Darker −10%#212F5A
Darker −20%#131B35
Darker −30%#06080F
Darker −40%#000000
More saturated +25%#193795
Less saturated −25%#454D69

Channel breakdown

R47
G66
B127
Red47 (18.4%)
Green66 (25.9%)
Blue127 (49.8%)
Hue225.75°
Saturation (HSL)45.98%
Lightness34.12%
Dominant channelBlue
Hex per channelR 2F · G 42 · B 7F

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Every value on this page was computed from “2f427f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.