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Recognised as Colour

#0043DA

  • #0043DA
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0043DA is a blue with RGB values 0, 67, 218 and HSL 222°, 100%, 43%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0043DA#0043DA
HEX#0043DA
RGBrgb(0, 67, 218)
RGB (0–1)0, 0.2627, 0.8549
RGB percentages0%, 26.3%, 85.5%
HSLhsl(221.6, 100%, 42.7%)
HSV / HSBhsv(221.6, 100%, 85.5%)
CMYK100%, 69.3%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,370
CSS custom property--colour: #0043DA;

Brightness & contrast

Relative luminance0.09076WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.46:1
Contrast with white7.46:1WCAG normal text: AAA
Contrast with black2.82:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#FFBC25

Colour vision & accessibility

Protanopia#005FDFno red cones; affects about 1% of men; ΔE 20 from the original
Deuteranopia#004BD7no green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#006E89no blue cones; rare, and affects men and women equally; ΔE 83.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.46:1WCAG large text: AAA
Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 22.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#DA9700
Analogous#00B0DA, #2A00DA
Triadic#DA0043, #43DA00
Split complementary#DA2A00, #B0DA00
Tetradic#DA00B0, #DA9700, #00DA2A

Tints, shades & saturation

Lighter +40%#A7C2FF
Lighter +30%#749FFF
Lighter +20%#417BFF
Lighter +10%#0E58FF
Darker −10%#0033A7
Darker −20%#002474
Darker −30%#001441
Darker −40%#00040E
More saturated +25%#0043DA
Less saturated −25%#1B4DBF

Channel breakdown

R0
G67
B218
Red0 (0%)
Green67 (26.3%)
Blue218 (85.5%)
Hue221.56°
Saturation (HSL)100%
Lightness42.75%
Dominant channelBlue
Hex per channelR 00 · G 43 · B DA

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Every value on this page was computed from “0043da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.