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Recognised as Colour

#09283B

  • #09283B
  • Blue
  • Dark
  • Nearest: Black

#09283B is a blue with RGB values 9, 40, 59 and HSL 203°, 74%, 13%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#09283B#09283B
HEX#09283B
RGBrgb(9, 40, 59)
RGB (0–1)0.0353, 0.1569, 0.2314
RGB percentages3.5%, 15.7%, 23.1%
HSLhsl(202.8, 73.5%, 13.3%)
HSV / HSBhsv(202.8, 84.7%, 23.1%)
CMYK84.7%, 32.2%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer600,123
CSS custom property--colour: #09283B;

Brightness & contrast

Relative luminance0.01891WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.24:1
Contrast with white15.24:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#F6D7C4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F283Cno red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#18233Bno green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#002D2Fno blue cones; rare, and affects men and women equally; ΔE 14.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.24:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Black · ΔE 21.7Dark slate grey · ΔE 21.7Dim grey · ΔE 33.5Slate grey · ΔE 38.3Steel blue · ΔE 41.1Light slate grey · ΔE 41.3
Nearest named CSS colourBlack (#000000)ΔE 21.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B1C09
Analogous#093B35, #090F3B
Triadic#3B0928, #283B09
Split complementary#3B090F, #3B3509
Tetradic#35093B, #3B1C09, #0F3B09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#309DE0
Lighter +30%#1D82C0
Lighter +20%#166494
Lighter +10%#104667
Darker −10%#020A0F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002A44
Less saturated −25%#112633

Channel breakdown

R9
G40
B59
Red9 (3.5%)
Green40 (15.7%)
Blue59 (23.1%)
Hue202.8°
Saturation (HSL)73.53%
Lightness13.33%
Dominant channelBlue
Hex per channelR 09 · G 28 · B 3B

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Every value on this page was computed from “09283b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.