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Recognised as Colour

#165DD2

  • #165DD2
  • Blue
  • Dark
  • Nearest: Royal blue

#165DD2 is a blue with RGB values 22, 93, 210 and HSL 217°, 81%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#165DD2#165DD2
HEX#165DD2
RGBrgb(22, 93, 210)
RGB (0–1)0.0863, 0.3647, 0.8235
RGB percentages8.6%, 36.5%, 82.4%
HSLhsl(217.3, 81%, 45.5%)
HSV / HSBhsv(217.3, 89.5%, 82.4%)
CMYK89.5%, 55.7%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,465,810
CSS custom property--colour: #165DD2;

Brightness & contrast

Relative luminance0.12652WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.95:1
Contrast with white5.95:1WCAG normal text: AA
Contrast with black3.53:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#E9A22D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006CD6no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#005CD0no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007B8Eno blue cones; rare, and affects men and women equally; ΔE 66.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.95:1WCAG large text: AAA
Contrast with black, large text3.53:1WCAG large text: AA

Named colours

Royal blue · ΔE 5.9Slate blue · ΔE 14.6Medium slateblue · ΔE 19.4Dodgerblue · ΔE 22.5Medium purple · ΔE 23.8Dark slateblue · ΔE 26.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 5.95, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D28B16
Analogous#16BBD2, #2D16D2
Triadic#D2165D, #5DD216
Split complementary#D22D16, #BBD216
Tetradic#D216BB, #D28B16, #16D22D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCD3F8
Lighter +30%#8EB4F3
Lighter +20%#6096EE
Lighter +10%#3277E9
Darker −10%#1149A4
Darker −20%#0C3476
Darker −30%#072048
Darker −40%#030B19
More saturated +25%#0058E8
Less saturated −25%#3364B5

Channel breakdown

R22
G93
B210
Red22 (8.6%)
Green93 (36.5%)
Blue210 (82.4%)
Hue217.34°
Saturation (HSL)81.03%
Lightness45.49%
Dominant channelBlue
Hex per channelR 16 · G 5D · B D2

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Every value on this page was computed from “165dd2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.