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Recognised as Colour

#091017

  • #091017
  • Blue
  • Dark
  • Nearest: Black

#091017 is a blue with RGB values 9, 16, 23 and HSL 210°, 44%, 6%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#091017#091017
HEX#091017
RGBrgb(9, 16, 23)
RGB (0–1)0.0353, 0.0627, 0.0902
RGB percentages3.5%, 6.3%, 9%
HSLhsl(210, 43.8%, 6.3%)
HSV / HSBhsv(210, 60.9%, 9%)
CMYK60.9%, 30.4%, 0%, 91%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer593,943
CSS custom property--colour: #091017;

Brightness & contrast

Relative luminance0.00491WCAG 2.x, 0 is black and 1 is white
Perceived brightness15.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.12:1
Contrast with white19.12:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#F6EFE8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D1017no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#0C0F17no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#051212no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.12:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail

Named colours

Black · ΔE 6.7Dark slate grey · ΔE 29.1Dim grey · ΔE 40.3Slate grey · ΔE 48.8Gray · ΔE 49.4Light slate grey · ΔE 51.9
Nearest named CSS colourBlack (#000000)ΔE 6.68, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#171009
Analogous#091717, #090917
Triadic#170910, #101709
Split complementary#170909, #171709
Tetradic#170917, #171009, #091709

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4276AA
Lighter +30%#345D85
Lighter +20%#264360
Lighter +10%#17293C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#05101B
Less saturated −25%#0D1013

Channel breakdown

R9
G16
B23
Red9 (3.5%)
Green16 (6.3%)
Blue23 (9%)
Hue210°
Saturation (HSL)43.75%
Lightness6.27%
Dominant channelBlue
Hex per channelR 09 · G 10 · B 17

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Every value on this page was computed from “hex 091017” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.