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Colour

#101C64

  • #101C64
  • Blue
  • Dark
  • Nearest: Midnight blue

#101C64 is a blue with RGB values 16, 28, 100 and HSL 231°, 72%, 23%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#101C64#101C64
HEX#101C64
RGBrgb(16, 28, 100)
RGB (0–1)0.0627, 0.1098, 0.3922
RGB percentages6.3%, 11%, 39.2%
HSLhsl(231.4, 72.4%, 22.7%)
HSV / HSBhsv(231.4, 84%, 39.2%)
CMYK84%, 72%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,055,844
CSS custom property--colour: #101C64;

Brightness & contrast

Relative luminance0.01861WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.3:1
Contrast with white15.3:1WCAG normal text: AAA
Contrast with black1.37:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#EFE39B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002966no red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#002163no green cones; the most common form, about 1% of men; ΔE 5.7 from the original
Tritanopia#00303Dno blue cones; rare, and affects men and women equally; ΔE 46 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.3:1WCAG large text: AAA
Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.6Dark slateblue · ΔE 16.3Rebecca purple · ΔE 26.3Indigo · ΔE 29.7Navy · ΔE 31.5Slate blue · ΔE 35.7
Nearest named CSS colourMidnight blue (#191970)ΔE 9.63, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#645810
Analogous#104664, #2E1064
Triadic#64101C, #1C6410
Split complementary#642E10, #466410
Tetradic#641046, #645810, #10642E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5B6FE5
Lighter +30%#2F48DE
Lighter +20%#1E35BC
Lighter +10%#172890
Darker −10%#091038
Darker −20%#02030C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#021272
Less saturated −25%#1E2656

Channel breakdown

R16
G28
B100
Red16 (6.3%)
Green28 (11%)
Blue100 (39.2%)
Hue231.43°
Saturation (HSL)72.41%
Lightness22.75%
Dominant channelBlue
Hex per channelR 10 · G 1C · B 64

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Every value on this page was computed from “101c64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.