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Colour

#11397C

  • #11397C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#11397C is a blue with RGB values 17, 57, 124 and HSL 218°, 76%, 28%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#11397C#11397C
HEX#11397C
RGBrgb(17, 57, 124)
RGB (0–1)0.0667, 0.2235, 0.4863
RGB percentages6.7%, 22.4%, 48.6%
HSLhsl(217.6, 75.9%, 27.6%)
HSV / HSBhsv(217.6, 86.3%, 48.6%)
CMYK86.3%, 54%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,128,828
CSS custom property--colour: #11397C;

Brightness & contrast

Relative luminance0.04501WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.05:1
Contrast with white11.05:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#EEC683

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#09417Eno red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#00377Bno green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#004954no blue cones; rare, and affects men and women equally; ΔE 41.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.05:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.7Midnight blue · ΔE 21.8Rebecca purple · ΔE 30.8Steel blue · ΔE 33.8Slate blue · ΔE 34.1Royal blue · ΔE 34.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C5411
Analogous#116F7C, #1E117C
Triadic#7C1139, #397C11
Split complementary#7C1E11, #6F7C11
Tetradic#7C116F, #7C5411, #117C1E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6E9DEB
Lighter +30%#417EE5
Lighter +20%#1D62D6
Lighter +10%#174EA9
Darker −10%#0B244F
Darker −20%#051022
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00358D
Less saturated −25%#233D6A

Channel breakdown

R17
G57
B124
Red17 (6.7%)
Green57 (22.4%)
Blue124 (48.6%)
Hue217.57°
Saturation (HSL)75.89%
Lightness27.65%
Dominant channelBlue
Hex per channelR 11 · G 39 · B 7C

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Every value on this page was computed from “11397c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.