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Recognised as Colour

#090717

  • #090717
  • Blue
  • Dark
  • Nearest: Black

#090717 is a blue with RGB values 9, 7, 23 and HSL 248°, 53%, 6%. It is a dark colour, so white text on it reaches 19.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#090717#090717
HEX#090717
RGBrgb(9, 7, 23)
RGB (0–1)0.0353, 0.0275, 0.0902
RGB percentages3.5%, 2.7%, 9%
HSLhsl(247.5, 53.3%, 5.9%)
HSV / HSBhsv(247.5, 69.6%, 9%)
CMYK60.9%, 69.6%, 0%, 91%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer591,639
CSS custom property--colour: #090717;

Brightness & contrast

Relative luminance0.00272WCAG 2.x, 0 is black and 1 is white
Perceived brightness10.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.92:1
Contrast with white19.92:1WCAG normal text: AAA
Contrast with black1.05:1WCAG normal text: Fail
Greyscale equivalent#090909
Inverted#F6F8E8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#030918no red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#030917no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#060A0Dno blue cones; rare, and affects men and women equally; ΔE 7.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.92:1WCAG large text: AAA
Contrast with black, large text1.05:1WCAG large text: Fail

Named colours

Black · ΔE 8.9Dark slate grey · ΔE 32.8Dim grey · ΔE 42.8Dark slateblue · ΔE 49.9Slate grey · ΔE 50.8Gray · ΔE 51.8
Nearest named CSS colourBlack (#000000)ΔE 8.93, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#151707
Analogous#070D17, #110717
Triadic#170907, #071709
Split complementary#171107, #0D1707
Tetradic#17070D, #151707, #071711

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4637B3
Lighter +30%#372B8C
Lighter +20%#281F65
Lighter +10%#18133E
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#06031B
Less saturated −25%#0C0B13

Channel breakdown

R9
G7
B23
Red9 (3.5%)
Green7 (2.7%)
Blue23 (9%)
Hue247.5°
Saturation (HSL)53.33%
Lightness5.88%
Dominant channelBlue
Hex per channelR 09 · G 07 · B 17

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Every value on this page was computed from “hex 090717” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.