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Colour

#004BD9

  • #004BD9
  • Blue
  • Dark
  • Nearest: Medium slateblue

#004BD9 is a blue with RGB values 0, 75, 217 and HSL 219°, 100%, 43%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#004BD9#004BD9
HEX#004BD9
RGBrgb(0, 75, 217)
RGB (0–1)0, 0.2941, 0.851
RGB percentages0%, 29.4%, 85.1%
HSLhsl(219.3, 100%, 42.5%)
HSV / HSBhsv(219.3, 100%, 85.1%)
CMYK100%, 65.4%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,417
CSS custom property--colour: #004BD9;

Brightness & contrast

Relative luminance0.10042WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.98:1
Contrast with white6.98:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#FFB426

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063DDno red cones; affects about 1% of men; ΔE 17.6 from the original
Deuteranopia#0050D6no green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#00728Bno blue cones; rare, and affects men and women equally; ΔE 79 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.98:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 18.6Royal blue · ΔE 19.3Slate blue · ΔE 20.7Dark blue · ΔE 27.5Navy · ΔE 29.4Rebecca purple · ΔE 30.6
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 18.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D98E00
Analogous#00B7D9, #2200D9
Triadic#D9004B, #4BD900
Split complementary#D92200, #B7D900
Tetradic#D900B7, #D98E00, #00D922

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6C5FF
Lighter +30%#73A3FF
Lighter +20%#4082FF
Lighter +10%#0D61FF
Darker −10%#0039A6
Darker −20%#002873
Darker −30%#001640
Darker −40%#00040D
More saturated +25%#004BD9
Less saturated −25%#1B53BE

Channel breakdown

R0
G75
B217
Red0 (0%)
Green75 (29.4%)
Blue217 (85.1%)
Hue219.26°
Saturation (HSL)100%
Lightness42.55%
Dominant channelBlue
Hex per channelR 00 · G 4B · B D9

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Every value on this page was computed from “004bd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.