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Recognised as Colour

#2D42D8

  • #2D42D8
  • Blue
  • Dark
  • Nearest: Medium slateblue

#2D42D8 is a blue with RGB values 45, 66, 216 and HSL 233°, 69%, 51%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2D42D8#2D42D8
HEX#2D42D8
RGBrgb(45, 66, 216)
RGB (0–1)0.1765, 0.2588, 0.8471
RGB percentages17.6%, 25.9%, 84.7%
HSLhsl(232.6, 68.7%, 51.2%)
HSV / HSBhsv(232.6, 79.2%, 84.7%)
CMYK79.2%, 69.4%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,966,232
CSS custom property--colour: #2D42D8;

Brightness & contrast

Relative luminance0.09412WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.29:1
Contrast with white7.29:1WCAG normal text: AAA
Contrast with black2.88:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#D2BD27

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005FDDno red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#004ED5no green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#006C88no blue cones; rare, and affects men and women equally; ΔE 82.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.29:1WCAG large text: AAA
Contrast with black, large text2.88:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 20.5Slate blue · ΔE 24Dark blue · ΔE 24.5Blue violet · ΔE 25.4Royal blue · ΔE 25.6Navy · ΔE 27.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 20.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8C32D
Analogous#2D97D8, #6E2DD8
Triadic#D82D42, #42D82D
Split complementary#D86E2D, #97D82D
Tetradic#D82D97, #D8C32D, #2DD86E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9DDF8
Lighter +30%#AEB6F0
Lighter +20%#838FE8
Lighter +10%#5869E0
Darker −10%#2133B1
Darker −20%#192686
Darker −30%#111A5B
Darker −40%#090E30
More saturated +25%#0E2BF7
Less saturated −25%#4C59B9

Channel breakdown

R45
G66
B216
Red45 (17.6%)
Green66 (25.9%)
Blue216 (84.7%)
Hue232.63°
Saturation (HSL)68.67%
Lightness51.18%
Dominant channelBlue
Hex per channelR 2D · G 42 · B D8

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Every value on this page was computed from “2d42d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.