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Recognised as Colour

#091039

  • #091039
  • Blue
  • Dark
  • Nearest: Midnight blue

#091039 is a blue with RGB values 9, 16, 57 and HSL 231°, 73%, 13%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#091039#091039
HEX#091039
RGBrgb(9, 16, 57)
RGB (0–1)0.0353, 0.0627, 0.2235
RGB percentages3.5%, 6.3%, 22.4%
HSLhsl(231.3, 72.7%, 12.9%)
HSV / HSBhsv(231.3, 84.2%, 22.4%)
CMYK84.2%, 71.9%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer593,977
CSS custom property--colour: #091039;

Brightness & contrast

Relative luminance0.00724WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.34:1
Contrast with white18.34:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#F6EFC6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00173Ano red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#001238no green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#001B22no blue cones; rare, and affects men and women equally; ΔE 28.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.34:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 30.1Dark slateblue · ΔE 31Black · ΔE 31.3Dark slate grey · ΔE 42.6Rebecca purple · ΔE 44Indigo · ΔE 48
Nearest named CSS colourMidnight blue (#191970)ΔE 30.06, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#393209
Analogous#092839, #1A0939
Triadic#390910, #103909
Split complementary#391A09, #283909
Tetradic#390928, #393209, #09391A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3049DE
Lighter +30%#1E35BD
Lighter +20%#172991
Lighter +10%#101C65
Darker −10%#02040D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#010A41
Less saturated −25%#111631

Channel breakdown

R9
G16
B57
Red9 (3.5%)
Green16 (6.3%)
Blue57 (22.4%)
Hue231.25°
Saturation (HSL)72.73%
Lightness12.94%
Dominant channelBlue
Hex per channelR 09 · G 10 · B 39

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Every value on this page was computed from “hex 091039” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.