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Recognised as Colour

#091B28

  • #091B28
  • Blue
  • Dark
  • Nearest: Black

#091B28 is a blue with RGB values 9, 27, 40 and HSL 205°, 63%, 10%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#091B28#091B28
HEX#091B28
RGBrgb(9, 27, 40)
RGB (0–1)0.0353, 0.1059, 0.1569
RGB percentages3.5%, 10.6%, 15.7%
HSLhsl(205.2, 63.3%, 9.6%)
HSV / HSBhsv(205.2, 77.5%, 15.7%)
CMYK77.5%, 32.5%, 0%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer596,776
CSS custom property--colour: #091B28;

Brightness & contrast

Relative luminance0.00995WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.51:1
Contrast with white17.51:1WCAG normal text: AAA
Contrast with black1.2:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#F6E4D7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#151B29no red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#111828no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#001E1Fno blue cones; rare, and affects men and women equally; ΔE 10.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.51:1WCAG large text: AAA
Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 14.4Dark slate grey · ΔE 25.3Dim grey · ΔE 37.2Slate grey · ΔE 43.9Gray · ΔE 46Light slate grey · ΔE 47
Nearest named CSS colourBlack (#000000)ΔE 14.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#281609
Analogous#092825, #090C28
Triadic#28091B, #1B2809
Split complementary#28090C, #282509
Tetradic#250928, #281609, #0C2809

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2E8BCF
Lighter +30%#256FA5
Lighter +20%#1C537B
Lighter +10%#123752
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#031C2E
Less saturated −25%#0F1A22

Channel breakdown

R9
G27
B40
Red9 (3.5%)
Green27 (10.6%)
Blue40 (15.7%)
Hue205.16°
Saturation (HSL)63.27%
Lightness9.61%
Dominant channelBlue
Hex per channelR 09 · G 1B · B 28

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Every value on this page was computed from “091b28” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.