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Recognised as Colour

#220F39

  • #220F39
  • Violet
  • Dark
  • Nearest: Midnight blue

#220F39 is a violet with RGB values 34, 15, 57 and HSL 267°, 58%, 14%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#220F39#220F39
HEX#220F39
RGBrgb(34, 15, 57)
RGB (0–1)0.1333, 0.0588, 0.2235
RGB percentages13.3%, 5.9%, 22.4%
HSLhsl(267.1, 58.3%, 14.1%)
HSV / HSBhsv(267.1, 73.7%, 22.4%)
CMYK40.4%, 73.7%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,232,121
CSS custom property--colour: #220F39;

Brightness & contrast

Relative luminance0.00977WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.57:1
Contrast with white17.57:1WCAG normal text: AAA
Contrast with black1.2:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#DDF0C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00193Ano red cones; affects about 1% of men; ΔE 14.7 from the original
Deuteranopia#021938no green cones; the most common form, about 1% of men; ΔE 15.3 from the original
Tritanopia#1D1822no blue cones; rare, and affects men and women equally; ΔE 23.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.57:1WCAG large text: AAA
Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 29.2Dark slateblue · ΔE 29.3Black · ΔE 32.4Rebecca purple · ΔE 40.5Dark slate grey · ΔE 44Indigo · ΔE 44.7
Nearest named CSS colourMidnight blue (#191970)ΔE 29.2, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#26390F
Analogous#0F1139, #370F39
Triadic#39220F, #0F3922
Split complementary#39370F, #11390F
Tetradic#390F11, #26390F, #0F3937

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8346CE
Lighter +30%#6A2FB2
Lighter +20%#52248A
Lighter +10%#3A1A61
Darker −10%#0A0411
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#210642
Less saturated −25%#231830

Channel breakdown

R34
G15
B57
Red34 (13.3%)
Green15 (5.9%)
Blue57 (22.4%)
Hue267.14°
Saturation (HSL)58.33%
Lightness14.12%
Dominant channelBlue
Hex per channelR 22 · G 0F · B 39

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Every value on this page was computed from “220f39” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.