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Recognised as Colour

#2A78DA

  • #2A78DA
  • Blue
  • Dark
  • Nearest: Dodgerblue

#2A78DA is a blue with RGB values 42, 120, 218 and HSL 213°, 70%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#2A78DA#2A78DA
HEX#2A78DA
RGBrgb(42, 120, 218)
RGB (0–1)0.1647, 0.4706, 0.8549
RGB percentages16.5%, 47.1%, 85.5%
HSLhsl(213.4, 70.4%, 51%)
HSV / HSBhsv(213.4, 80.7%, 85.5%)
CMYK80.7%, 45%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,783,450
CSS custom property--colour: #2A78DA;

Brightness & contrast

Relative luminance0.18987WCAG 2.x, 0 is black and 1 is white
Perceived brightness120 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.8:1
Contrast with white4.38:1WCAG normal text: Fail
Contrast with black4.8:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#D58725

Colour vision & accessibility

Protanopia#4481DEno red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#1A71D8no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#008F9Eno blue cones; rare, and affects men and women equally; ΔE 55 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.38:1WCAG large text: AA
Contrast with black, large text4.8:1WCAG large text: AAA

Named colours

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#DA8C2A
Analogous#2AD0DA, #342ADA
Triadic#DA2A78, #78DA2A
Split complementary#DA342A, #D0DA2A
Tetradic#DA2AD0, #DA8C2A, #2ADA34

Tints, shades & saturation

Lighter +40%#D8E6F8
Lighter +30%#ACCBF1
Lighter +20%#81AFE9
Lighter +10%#5594E2
Darker −10%#1F60B2
Darker −20%#174987
Darker −30%#10315B
Darker −40%#081A30
More saturated +25%#0B74F9
Less saturated −25%#497CBB

Channel breakdown

R42
G120
B218
Red42 (16.5%)
Green120 (47.1%)
Blue218 (85.5%)
Hue213.41°
Saturation (HSL)70.4%
Lightness50.98%
Dominant channelBlue
Hex per channelR 2A · G 78 · B DA

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Every value on this page was computed from “2a78da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.