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Recognised as Colour

#2165B8

  • #2165B8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#2165B8 is a blue with RGB values 33, 101, 184 and HSL 213°, 70%, 43%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#2165B8#2165B8
HEX#2165B8
RGBrgb(33, 101, 184)
RGB (0–1)0.1294, 0.3961, 0.7216
RGB percentages12.9%, 39.6%, 72.2%
HSLhsl(213, 69.6%, 42.5%)
HSV / HSBhsv(213, 82.1%, 72.2%)
CMYK82.1%, 45.1%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,188,728
CSS custom property--colour: #2165B8;

Brightness & contrast

Relative luminance0.13091WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.8:1
Contrast with white5.8:1WCAG normal text: AA
Contrast with black3.62:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#DE9A47

Colour vision & accessibility

Protanopia#396DBBno red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#175FB6no green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#007985no blue cones; rare, and affects men and women equally; ΔE 48.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.8:1WCAG large text: AAA
Contrast with black, large text3.62:1WCAG large text: AA

Named colours

Nearest named CSS colourCornflower blue (#6495ED)ΔE 19.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#B87421
Analogous#21B1B8, #2821B8
Triadic#B82165, #65B821
Split complementary#B82821, #B1B821
Tetradic#B821B1, #B87421, #21B828

Tints, shades & saturation

Lighter +40%#B4CFF1
Lighter +30%#88B4EA
Lighter +20%#5D99E2
Lighter +10%#327EDA
Darker −10%#194D8D
Darker −20%#113662
Darker −30%#0A1E36
Darker −40%#02060B
More saturated +25%#0662D3
Less saturated −25%#3C689D

Channel breakdown

R33
G101
B184
Red33 (12.9%)
Green101 (39.6%)
Blue184 (72.2%)
Hue212.98°
Saturation (HSL)69.59%
Lightness42.55%
Dominant channelBlue
Hex per channelR 21 · G 65 · B B8

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Every value on this page was computed from “2165b8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.