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Recognised as Colour

#030939

  • #030939
  • Blue
  • Dark
  • Nearest: Midnight blue

#030939 is a blue with RGB values 3, 9, 57 and HSL 233°, 90%, 12%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#030939#030939
HEX#030939
RGBrgb(3, 9, 57)
RGB (0–1)0.0118, 0.0353, 0.2235
RGB percentages1.2%, 3.5%, 22.4%
HSLhsl(233.3, 90%, 11.8%)
HSV / HSBhsv(233.3, 94.7%, 22.4%)
CMYK94.7%, 84.2%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer198,969
CSS custom property--colour: #030939;

Brightness & contrast

Relative luminance0.0051WCAG 2.x, 0 is black and 1 is white
Perceived brightness20.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.06:1
Contrast with white19.06:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0B0B0B
Inverted#FCF6C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00133Ano red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#000D38no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#001720no blue cones; rare, and affects men and women equally; ΔE 29.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.06:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 27.2Dark slateblue · ΔE 30.4Black · ΔE 34.7Rebecca purple · ΔE 42.5Indigo · ΔE 45.3Dark slate grey · ΔE 46.8
Nearest named CSS colourMidnight blue (#191970)ΔE 27.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#393303
Analogous#032439, #180339
Triadic#390309, #093903
Split complementary#391803, #243903
Tetradic#390324, #393303, #033918

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#152EF3
Lighter +30%#0B20CA
Lighter +20%#08189A
Lighter +10%#061169
Darker −10%#000109
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00073C
Less saturated −25%#0B0F31

Channel breakdown

R3
G9
B57
Red3 (1.2%)
Green9 (3.5%)
Blue57 (22.4%)
Hue233.33°
Saturation (HSL)90%
Lightness11.76%
Dominant channelBlue
Hex per channelR 03 · G 09 · B 39

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Every value on this page was computed from “hex 030939” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.