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Recognised as Colour

#103B52

  • #103B52
  • Blue
  • Dark
  • Nearest: Dark slate grey

#103B52 is a blue with RGB values 16, 59, 82 and HSL 201°, 67%, 19%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#103B52#103B52
HEX#103B52
RGBrgb(16, 59, 82)
RGB (0–1)0.0627, 0.2314, 0.3216
RGB percentages6.3%, 23.1%, 32.2%
HSLhsl(200.9, 67.3%, 19.2%)
HSV / HSBhsv(200.9, 80.5%, 32.2%)
CMYK80.5%, 28%, 0%, 67.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,063,762
CSS custom property--colour: #103B52;

Brightness & contrast

Relative luminance0.03847WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.87:1
Contrast with white11.87:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#EFC4AD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#303B53no red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#273452no green cones; the most common form, about 1% of men; ΔE 10.1 from the original
Tritanopia#004143no blue cones; rare, and affects men and women equally; ΔE 16.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.87:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.6Dim grey · ΔE 28.5Black · ΔE 30Slate grey · ΔE 30.8Steel blue · ΔE 32.5Light slate grey · ΔE 33.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#522710
Analogous#105248, #101A52
Triadic#52103B, #3B5210
Split complementary#52101A, #524810
Tetradic#481052, #522710, #1A5210

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#51ACDD
Lighter +30%#2997D2
Lighter +20%#2178A7
Lighter +10%#185A7D
Darker −10%#081C27
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#043F5E
Less saturated −25%#1C3746

Channel breakdown

R16
G59
B82
Red16 (6.3%)
Green59 (23.1%)
Blue82 (32.2%)
Hue200.91°
Saturation (HSL)67.35%
Lightness19.22%
Dominant channelBlue
Hex per channelR 10 · G 3B · B 52

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Every value on this page was computed from “103b52” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.