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Recognised as Colour

#004ADD

  • #004ADD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#004ADD is a blue with RGB values 0, 74, 221 and HSL 220°, 100%, 43%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#004ADD#004ADD
HEX#004ADD
RGBrgb(0, 74, 221)
RGB (0–1)0, 0.2902, 0.8667
RGB percentages0%, 29%, 86.7%
HSLhsl(219.9, 100%, 43.3%)
HSV / HSBhsv(219.9, 100%, 86.7%)
CMYK100%, 66.5%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,165
CSS custom property--colour: #004ADD;

Brightness & contrast

Relative luminance0.10118WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.95:1
Contrast with white6.95:1WCAG normal text: AA
Contrast with black3.02:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#FFB522

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063E2no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#0050DAno green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#00738Dno blue cones; rare, and affects men and women equally; ΔE 81.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.95:1WCAG large text: AAA
Contrast with black, large text3.02:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.6Royal blue · ΔE 21.9Slate blue · ΔE 22.9Dark blue · ΔE 27.5Navy · ΔE 29.8Blue violet · ΔE 30.3
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9300
Analogous#00B9DD, #2400DD
Triadic#DD004A, #4ADD00
Split complementary#DD2400, #B9DD00
Tetradic#DD00B9, #DD9300, #00DD24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAC6FF
Lighter +30%#77A5FF
Lighter +20%#4483FF
Lighter +10%#1161FF
Darker −10%#0039AA
Darker −20%#002877
Darker −30%#001744
Darker −40%#000611
More saturated +25%#004ADD
Less saturated −25%#1C53C1

Channel breakdown

R0
G74
B221
Red0 (0%)
Green74 (29%)
Blue221 (86.7%)
Hue219.91°
Saturation (HSL)100%
Lightness43.33%
Dominant channelBlue
Hex per channelR 00 · G 4A · B DD

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Every value on this page was computed from “004add” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.