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Recognised as Colour

#15216F

  • #15216F
  • Blue
  • Dark
  • Nearest: Midnight blue

#15216F is a blue with RGB values 21, 33, 111 and HSL 232°, 68%, 26%. It is a dark colour, so white text on it reaches 14.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#15216F#15216F
HEX#15216F
RGBrgb(21, 33, 111)
RGB (0–1)0.0824, 0.1294, 0.4353
RGB percentages8.2%, 12.9%, 43.5%
HSLhsl(232, 68.2%, 25.9%)
HSV / HSBhsv(232, 81.1%, 43.5%)
CMYK81.1%, 70.3%, 0%, 56.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,384,815
CSS custom property--colour: #15216F;

Brightness & contrast

Relative luminance0.02395WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.2:1
Contrast with white14.2:1WCAG normal text: AAA
Contrast with black1.48:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#EADE90

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002F71no red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#00276Eno green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#003645no blue cones; rare, and affects men and women equally; ΔE 48.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.2:1WCAG large text: AAA
Contrast with black, large text1.48:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 7Dark slateblue · ΔE 14.1Rebecca purple · ΔE 23.2Indigo · ΔE 27.1Navy · ΔE 28.9Slate blue · ΔE 31.9
Nearest named CSS colourMidnight blue (#191970)ΔE 7.04, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6F6315
Analogous#154E6F, #36156F
Triadic#6F1521, #216F15
Split complementary#6F3615, #4E6F15
Tetradic#6F154E, #6F6315, #156F36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6D7DE3
Lighter +30%#4256DB
Lighter +20%#253BC5
Lighter +10%#1D2E9A
Darker −10%#0D1444
Darker −20%#050819
Darker −30%#000000
Darker −40%#000000
More saturated +25%#051580
Less saturated −25%#262D5F

Channel breakdown

R21
G33
B111
Red21 (8.2%)
Green33 (12.9%)
Blue111 (43.5%)
Hue232°
Saturation (HSL)68.18%
Lightness25.88%
Dominant channelBlue
Hex per channelR 15 · G 21 · B 6F

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Every value on this page was computed from “15216f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.