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Recognised as Colour

#101D47

  • #101D47
  • Blue
  • Dark
  • Nearest: Dark slateblue

#101D47 is a blue with RGB values 16, 29, 71 and HSL 226°, 63%, 17%. It is a dark colour, so white text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#101D47#101D47
HEX#101D47
RGBrgb(16, 29, 71)
RGB (0–1)0.0627, 0.1137, 0.2784
RGB percentages6.3%, 11.4%, 27.8%
HSLhsl(225.8, 63.2%, 17.1%)
HSV / HSBhsv(225.8, 77.5%, 27.8%)
CMYK77.5%, 59.2%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,056,071
CSS custom property--colour: #101D47;

Brightness & contrast

Relative luminance0.01444WCAG 2.x, 0 is black and 1 is white
Perceived brightness33.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.29:1
Contrast with white16.29:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#EFE2B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#032348no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#001E46no green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#00272Eno blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.29:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.6Midnight blue · ΔE 29.9Black · ΔE 32.6Dark slate grey · ΔE 38.5Rebecca purple · ΔE 42.3Steel blue · ΔE 43.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#473A10
Analogous#103947, #1E1047
Triadic#47101D, #1D4710
Split complementary#471E10, #394710
Tetradic#471039, #473A10, #10471F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4C6DD7
Lighter +30%#2C50C4
Lighter +20%#233F9A
Lighter +10%#192E71
Darker −10%#070C1D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#051752
Less saturated −25%#1B233C

Channel breakdown

R16
G29
B71
Red16 (6.3%)
Green29 (11.4%)
Blue71 (27.8%)
Hue225.82°
Saturation (HSL)63.22%
Lightness17.06%
Dominant channelBlue
Hex per channelR 10 · G 1D · B 47

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Every value on this page was computed from “101d47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.