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Colour

#0001A9

  • #0001A9
  • Blue
  • Dark
  • Nearest: Dark blue

#0001A9 is a blue with RGB values 0, 1, 169 and HSL 240°, 100%, 33%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0001A9#0001A9
HEX#0001A9
RGBrgb(0, 1, 169)
RGB (0–1)0, 0.0039, 0.6627
RGB percentages0%, 0.4%, 66.3%
HSLhsl(239.6, 100%, 33.1%)
HSV / HSBhsv(239.6, 100%, 66.3%)
CMYK100%, 99.4%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer425
CSS custom property--colour: #0001A9;

Brightness & contrast

Relative luminance0.02886WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.31:1
Contrast with white13.31:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#FFFE56

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0038ADno red cones; affects about 1% of men; ΔE 29.4 from the original
Deuteranopia#0026A7no green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#004561no blue cones; rare, and affects men and women equally; ΔE 87.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.31:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark blue · ΔE 13.7Medium blue · ΔE 16.4Navy · ΔE 19Blue violet · ΔE 25.9Indigo · ΔE 26.5Dark violet · ΔE 28.6
Nearest named CSS colourDark blue (#00008B)ΔE 13.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A9A800
Analogous#0055A9, #5400A9
Triadic#A90001, #01A900
Split complementary#A95400, #55A900
Tetradic#A90055, #A9A800, #00A954

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7677FF
Lighter +30%#4344FF
Lighter +20%#1011FF
Lighter +10%#0001DC
Darker −10%#000176
Darker −20%#000043
Darker −30%#000010
Darker −40%#000000
More saturated +25%#0001A9
Less saturated −25%#151694

Channel breakdown

R0
G1
B169
Red0 (0%)
Green1 (0.4%)
Blue169 (66.3%)
Hue239.64°
Saturation (HSL)100%
Lightness33.14%
Dominant channelBlue
Hex per channelR 00 · G 01 · B A9

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Every value on this page was computed from “0001a9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.