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Recognised as Colour

#2F335B

  • #2F335B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F335B is a blue with RGB values 47, 51, 91 and HSL 235°, 32%, 27%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F335B#2F335B
HEX#2F335B
RGBrgb(47, 51, 91)
RGB (0–1)0.1843, 0.2, 0.3569
RGB percentages18.4%, 20%, 35.7%
HSLhsl(234.5, 31.9%, 27.1%)
HSV / HSBhsv(234.5, 48.4%, 35.7%)
CMYK48.4%, 44%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,093,339
CSS custom property--colour: #2F335B;

Brightness & contrast

Relative luminance0.03727WCAG 2.x, 0 is black and 1 is white
Perceived brightness56 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.03:1
Contrast with white12.03:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D0CCA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#24385Dno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#21355Ano green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#203B42no blue cones; rare, and affects men and women equally; ΔE 25.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.03:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.8Dark slate grey · ΔE 31.6Midnight blue · ΔE 33.6Steel blue · ΔE 33.9Dim grey · ΔE 34.4Black · ΔE 35.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B572F
Analogous#2F495B, #412F5B
Triadic#5B2F33, #335B2F
Split complementary#5B412F, #495B2F
Tetradic#5B2F49, #5B572F, #2F5B41

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9095C6
Lighter +30%#6F75B4
Lighter +20%#52599E
Lighter +10%#40467D
Darker −10%#1E2039
Darker −20%#0C0D18
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E256C
Less saturated −25%#40414A

Channel breakdown

R47
G51
B91
Red47 (18.4%)
Green51 (20%)
Blue91 (35.7%)
Hue234.55°
Saturation (HSL)31.88%
Lightness27.06%
Dominant channelBlue
Hex per channelR 2F · G 33 · B 5B

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Every value on this page was computed from “2f335b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.