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Recognised as Colour

#09103B

  • #09103B
  • Blue
  • Dark
  • Nearest: Midnight blue

#09103B is a blue with RGB values 9, 16, 59 and HSL 232°, 74%, 13%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#09103B#09103B
HEX#09103B
RGBrgb(9, 16, 59)
RGB (0–1)0.0353, 0.0627, 0.2314
RGB percentages3.5%, 6.3%, 23.1%
HSLhsl(231.6, 73.5%, 13.3%)
HSV / HSBhsv(231.6, 84.7%, 23.1%)
CMYK84.7%, 72.9%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer593,979
CSS custom property--colour: #09103B;

Brightness & contrast

Relative luminance0.00744WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.28:1
Contrast with white18.28:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#F6EFC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00173Cno red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#00133Ano green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#001B23no blue cones; rare, and affects men and women equally; ΔE 29.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.28:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 28.6Dark slateblue · ΔE 29.9Black · ΔE 32.8Rebecca purple · ΔE 42.7Dark slate grey · ΔE 43.8Indigo · ΔE 46.6
Nearest named CSS colourMidnight blue (#191970)ΔE 28.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B3409
Analogous#09293B, #1B093B
Triadic#3B0910, #103B09
Split complementary#3B1B09, #293B09
Tetradic#3B0929, #3B3409, #093B1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3049E0
Lighter +30%#1D34C0
Lighter +20%#162894
Lighter +10%#101C67
Darker −10%#02040F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000A44
Less saturated −25%#111633

Channel breakdown

R9
G16
B59
Red9 (3.5%)
Green16 (6.3%)
Blue59 (23.1%)
Hue231.6°
Saturation (HSL)73.53%
Lightness13.33%
Dominant channelBlue
Hex per channelR 09 · G 10 · B 3B

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Every value on this page was computed from “09103b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.