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Recognised as Colour

#10189C

  • #10189C
  • Blue
  • Dark
  • Nearest: Dark blue

#10189C is a blue with RGB values 16, 24, 156 and HSL 237°, 81%, 34%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#10189C#10189C
HEX#10189C
RGBrgb(16, 24, 156)
RGB (0–1)0.0627, 0.0941, 0.6118
RGB percentages6.3%, 9.4%, 61.2%
HSLhsl(236.6, 81.4%, 33.7%)
HSV / HSBhsv(236.6, 89.7%, 61.2%)
CMYK89.7%, 84.6%, 0%, 38.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,054,876
CSS custom property--colour: #10189C;

Brightness & contrast

Relative luminance0.03164WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.86:1
Contrast with white12.86:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#EFE763

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0039A0no red cones; affects about 1% of men; ΔE 22.7 from the original
Deuteranopia#002A9Ano green cones; the most common form, about 1% of men; ΔE 13.3 from the original
Tritanopia#00445Cno blue cones; rare, and affects men and women equally; ΔE 75.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.86:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Dark blue · ΔE 7Navy · ΔE 9Indigo · ΔE 16.8Midnight blue · ΔE 25.3Rebecca purple · ΔE 25.6Slate blue · ΔE 29.3
Nearest named CSS colourDark blue (#00008B)ΔE 7, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9C9410
Analogous#105E9C, #4E109C
Triadic#9C1018, #189C10
Split complementary#9C4E10, #5E9C10
Tetradic#9C105E, #9C9410, #109C4E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#858CF3
Lighter +30%#5760EE
Lighter +20%#2934E9
Lighter +10%#151FCA
Darker −10%#0B116E
Darker −20%#070A3F
Darker −30%#020311
Darker −40%#000000
More saturated +25%#000AAC
Less saturated −25%#262B87

Channel breakdown

R16
G24
B156
Red16 (6.3%)
Green24 (9.4%)
Blue156 (61.2%)
Hue236.57°
Saturation (HSL)81.4%
Lightness33.73%
Dominant channelBlue
Hex per channelR 10 · G 18 · B 9C

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Every value on this page was computed from “10189c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.