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Recognised as Colour

#09155B

  • #09155B
  • Blue
  • Dark
  • Nearest: Midnight blue

#09155B is a blue with RGB values 9, 21, 91 and HSL 231°, 82%, 20%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#09155B#09155B
HEX#09155B
RGBrgb(9, 21, 91)
RGB (0–1)0.0353, 0.0824, 0.3569
RGB percentages3.5%, 8.2%, 35.7%
HSLhsl(231.2, 82%, 19.6%)
HSV / HSBhsv(231.2, 90.1%, 35.7%)
CMYK90.1%, 76.9%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer595,291
CSS custom property--colour: #09155B;

Brightness & contrast

Relative luminance0.0135WCAG 2.x, 0 is black and 1 is white
Perceived brightness35 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.54:1
Contrast with white16.54:1WCAG normal text: AAA
Contrast with black1.27:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#F6EAA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00235Dno red cones; affects about 1% of men; ΔE 12 from the original
Deuteranopia#001B5Ano green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#002936no blue cones; rare, and affects men and women equally; ΔE 45 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.54:1WCAG large text: AAA
Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.5Dark slateblue · ΔE 19.3Rebecca purple · ΔE 28.2Indigo · ΔE 30.1Navy · ΔE 31.5Dark blue · ΔE 36.5
Nearest named CSS colourMidnight blue (#191970)ΔE 10.54, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B4F09
Analogous#093E5B, #26095B
Triadic#5B0915, #155B09
Split complementary#5B2609, #3E5B09
Tetradic#5B093E, #5B4F09, #095B26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#445CEC
Lighter +30%#1735E6
Lighter +20%#122AB8
Lighter +10%#0E2089
Darker −10%#040A2D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000F64
Less saturated −25%#151E4F

Channel breakdown

R9
G21
B91
Red9 (3.5%)
Green21 (8.2%)
Blue91 (35.7%)
Hue231.22°
Saturation (HSL)82%
Lightness19.61%
Dominant channelBlue
Hex per channelR 09 · G 15 · B 5B

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Every value on this page was computed from “09155b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.