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Colour

#101B65

  • #101B65
  • Blue
  • Dark
  • Nearest: Midnight blue

#101B65 is a blue with RGB values 16, 27, 101 and HSL 232°, 73%, 23%. It is a dark colour, so white text on it reaches 15.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#101B65#101B65
HEX#101B65
RGBrgb(16, 27, 101)
RGB (0–1)0.0627, 0.1059, 0.3961
RGB percentages6.3%, 10.6%, 39.6%
HSLhsl(232.2, 72.6%, 22.9%)
HSV / HSBhsv(232.2, 84.2%, 39.6%)
CMYK84.2%, 73.3%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,055,589
CSS custom property--colour: #101B65;

Brightness & contrast

Relative luminance0.01834WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.37:1
Contrast with white15.37:1WCAG normal text: AAA
Contrast with black1.37:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#EFE49A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002967no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#002164no green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#00303Dno blue cones; rare, and affects men and women equally; ΔE 47.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.37:1WCAG large text: AAA
Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.2Dark slateblue · ΔE 16.4Rebecca purple · ΔE 25.5Indigo · ΔE 28.4Navy · ΔE 30Dark blue · ΔE 34.8
Nearest named CSS colourMidnight blue (#191970)ΔE 8.24, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#655A10
Analogous#104665, #301065
Triadic#65101B, #1B6510
Split complementary#653010, #456510
Tetradic#651045, #655A10, #106530

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5C6EE5
Lighter +30%#3046DE
Lighter +20%#1E33BD
Lighter +10%#172791
Darker −10%#090F39
Darker −20%#02030D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#011074
Less saturated −25%#1F2656

Channel breakdown

R16
G27
B101
Red16 (6.3%)
Green27 (10.6%)
Blue101 (39.6%)
Hue232.24°
Saturation (HSL)72.65%
Lightness22.94%
Dominant channelBlue
Hex per channelR 10 · G 1B · B 65

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Every value on this page was computed from “101b65” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.