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Recognised as Colour

#2278B6

  • #2278B6
  • Blue
  • Dark
  • Nearest: Steel blue

#2278B6 is a blue with RGB values 34, 120, 182 and HSL 205°, 69%, 42%. 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

#2278B6#2278B6
HEX#2278B6
RGBrgb(34, 120, 182)
RGB (0–1)0.1333, 0.4706, 0.7137
RGB percentages13.3%, 47.1%, 71.4%
HSLhsl(205.1, 68.5%, 42.4%)
HSV / HSBhsv(205.1, 81.3%, 71.4%)
CMYK81.3%, 34.1%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,259,126
CSS custom property--colour: #2278B6;

Brightness & contrast

Relative luminance0.1715WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.74:1
Contrast with white4.74:1WCAG normal text: AA
Contrast with black4.43:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#DD8749

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B7AB9no red cones; affects about 1% of men; ΔE 10.6 from the original
Deuteranopia#466DB5no green cones; the most common form, about 1% of men; ΔE 12.2 from the original
Tritanopia#00878Eno blue cones; rare, and affects men and women equally; ΔE 37 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.74:1WCAG large text: AAA
Contrast with black, large text4.43:1WCAG large text: AA

Named colours

Steel blue · ΔE 8.6Cornflower blue · ΔE 20.5Deep skyblue · ΔE 28.5Dodgerblue · ΔE 29Slate grey · ΔE 29.5Light slate grey · ΔE 29.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.65, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B66022
Analogous#22B6AA, #222EB6
Triadic#B62278, #78B622
Split complementary#B6222E, #B6AA22
Tetradic#AA22B6, #B66022, #2EB622

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B3D7F1
Lighter +30%#88C0E9
Lighter +20%#5DAAE1
Lighter +10%#3293D9
Darker −10%#1A5C8B
Darker −20%#123F60
Darker −30%#0A2335
Darker −40%#02070A
More saturated +25%#077CD1
Less saturated −25%#3D749B

Channel breakdown

R34
G120
B182
Red34 (13.3%)
Green120 (47.1%)
Blue182 (71.4%)
Hue205.14°
Saturation (HSL)68.52%
Lightness42.35%
Dominant channelBlue
Hex per channelR 22 · G 78 · B B6

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Every value on this page was computed from “2278b6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.