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Colour

#004BDD

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

#004BDD is a blue with RGB values 0, 75, 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

#004BDD#004BDD
HEX#004BDD
RGBrgb(0, 75, 221)
RGB (0–1)0, 0.2941, 0.8667
RGB percentages0%, 29.4%, 86.7%
HSLhsl(219.6, 100%, 43.3%)
HSV / HSBhsv(219.6, 100%, 86.7%)
CMYK100%, 66.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,421
CSS custom property--colour: #004BDD;

Brightness & contrast

Relative luminance0.10253WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.88:1
Contrast with white6.88:1WCAG normal text: AA
Contrast with black3.05:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#FFB422

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064E2no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#0051DAno 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 80.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.88:1WCAG large text: AAA
Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.2Royal blue · ΔE 21.1Slate blue · ΔE 22.3Dark blue · ΔE 27.8Navy · ΔE 30Blue violet · ΔE 30.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9200
Analogous#00BADD, #2300DD
Triadic#DD004B, #4BDD00
Split complementary#DD2400, #BADD00
Tetradic#DD00BA, #DD9200, #00DD23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAC7FF
Lighter +30%#77A5FF
Lighter +20%#4483FF
Lighter +10%#1162FF
Darker −10%#003AAA
Darker −20%#002877
Darker −30%#001744
Darker −40%#000611
More saturated +25%#004BDD
Less saturated −25%#1C54C1

Channel breakdown

R0
G75
B221
Red0 (0%)
Green75 (29.4%)
Blue221 (86.7%)
Hue219.64°
Saturation (HSL)100%
Lightness43.33%
Dominant channelBlue
Hex per channelR 00 · G 4B · B DD

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