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Colour

#0064DB

  • #0064DB
  • Blue
  • Dark
  • Nearest: Royal blue

#0064DB is a blue with RGB values 0, 100, 219 and HSL 213°, 100%, 43%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0064DB#0064DB
HEX#0064DB
RGBrgb(0, 100, 219)
RGB (0–1)0, 0.3922, 0.8588
RGB percentages0%, 39.2%, 85.9%
HSLhsl(212.6, 100%, 42.9%)
HSV / HSBhsv(212.6, 100%, 85.9%)
CMYK100%, 54.3%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer25,819
CSS custom property--colour: #0064DB;

Brightness & contrast

Relative luminance0.14229WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.46:1
Contrast with white5.46:1WCAG normal text: AA
Contrast with black3.85:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#FF9B24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0073DFno red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#0061D9no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#008296no blue cones; rare, and affects men and women equally; ΔE 66 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.46:1WCAG large text: AAA
Contrast with black, large text3.85:1WCAG large text: AA

Named colours

Royal blue · ΔE 5.3Slate blue · ΔE 16.5Dodgerblue · ΔE 19.8Medium slateblue · ΔE 20.1Medium purple · ΔE 24.6Cornflower blue · ΔE 28.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 5.33, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DB7700
Analogous#00D2DB, #0900DB
Triadic#DB0064, #64DB00
Split complementary#DB0900, #D2DB00
Tetradic#DB00D2, #DB7700, #00DB09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A8D0FF
Lighter +30%#75B4FF
Lighter +20%#4298FF
Lighter +10%#0F7DFF
Darker −10%#004DA8
Darker −20%#003575
Darker −30%#001E42
Darker −40%#00070F
More saturated +25%#0064DB
Less saturated −25%#1B66C0

Channel breakdown

R0
G100
B219
Red0 (0%)
Green100 (39.2%)
Blue219 (85.9%)
Hue212.6°
Saturation (HSL)100%
Lightness42.94%
Dominant channelBlue
Hex per channelR 00 · G 64 · B DB

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Every value on this page was computed from “0064db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.