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Colour

#2777B9

  • #2777B9
  • Blue
  • Dark
  • Nearest: Steel blue

#2777B9 is a blue with RGB values 39, 119, 185 and HSL 207°, 65%, 44%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2777B9#2777B9
HEX#2777B9
RGBrgb(39, 119, 185)
RGB (0–1)0.1529, 0.4667, 0.7255
RGB percentages15.3%, 46.7%, 72.5%
HSLhsl(207.1, 65.2%, 43.9%)
HSV / HSBhsv(207.1, 78.9%, 72.5%)
CMYK78.9%, 35.7%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,586,553
CSS custom property--colour: #2777B9;

Brightness & contrast

Relative luminance0.17128WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.75:1
Contrast with white4.75:1WCAG normal text: AA
Contrast with black4.43:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#D88846

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#587ABCno red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#436DB8no green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#00878Fno blue cones; rare, and affects men and women equally; ΔE 39.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.75:1WCAG large text: AAA
Contrast with black, large text4.43:1WCAG large text: AA

Named colours

Steel blue · ΔE 10.8Cornflower blue · ΔE 18.4Dodgerblue · ΔE 26.6Deep skyblue · ΔE 29.6Slate grey · ΔE 31.3Light slate grey · ΔE 31.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B96927
Analogous#27B9B2, #272EB9
Triadic#B92777, #77B927
Split complementary#B9272E, #B9B227
Tetradic#B227B9, #B96927, #2EB927

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBD9F1
Lighter +30%#91C1E8
Lighter +20%#67A9DF
Lighter +10%#3D91D6
Darker −10%#1E5C8F
Darker −20%#154165
Darker −30%#0C263B
Darker −40%#030B11
More saturated +25%#0B7AD5
Less saturated −25%#43749D

Channel breakdown

R39
G119
B185
Red39 (15.3%)
Green119 (46.7%)
Blue185 (72.5%)
Hue207.12°
Saturation (HSL)65.18%
Lightness43.92%
Dominant channelBlue
Hex per channelR 27 · G 77 · B B9

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Every value on this page was computed from “2777b9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.