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Recognised as Colour

#090042

  • #090042
  • Blue
  • Dark
  • Nearest: Midnight blue

#090042 is a blue with RGB values 9, 0, 66 and HSL 248°, 100%, 13%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#090042#090042
HEX#090042
RGBrgb(9, 0, 66)
RGB (0–1)0.0353, 0, 0.2588
RGB percentages3.5%, 0%, 25.9%
HSLhsl(248.2, 100%, 12.9%)
HSV / HSBhsv(248.2, 100%, 25.9%)
CMYK86.4%, 100%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer589,890
CSS custom property--colour: #090042;

Brightness & contrast

Relative luminance0.00451WCAG 2.x, 0 is black and 1 is white
Perceived brightness22.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.26:1
Contrast with white19.26:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#070707
Inverted#F6FFBD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001144no red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#000B41no green cones; the most common form, about 1% of men; ΔE 8.2 from the original
Tritanopia#001623no blue cones; rare, and affects men and women equally; ΔE 39.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.26:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 17.4Dark slateblue · ΔE 27.1Indigo · ΔE 33.9Rebecca purple · ΔE 34.5Navy · ΔE 35.3Dark blue · ΔE 40.5
Nearest named CSS colourMidnight blue (#191970)ΔE 17.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#394200
Analogous#001842, #2A0042
Triadic#420900, #004209
Split complementary#422A00, #184200
Tetradic#420018, #394200, #00422A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#300FFF
Lighter +30%#1E00DB
Lighter +20%#1700A8
Lighter +10%#100075
Darker −10%#02000F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#090042
Less saturated −25%#0F083A

Channel breakdown

R9
G0
B66
Red9 (3.5%)
Green0 (0%)
Blue66 (25.9%)
Hue248.18°
Saturation (HSL)100%
Lightness12.94%
Dominant channelBlue
Hex per channelR 09 · G 00 · B 42

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Every value on this page was computed from “hex 090042” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.