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Recognised as Colour

#2A5680

  • #2A5680
  • Blue
  • Dark
  • Nearest: Steel blue

#2A5680 is a blue with RGB values 42, 86, 128 and HSL 209°, 51%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#2A5680#2A5680
HEX#2A5680
RGBrgb(42, 86, 128)
RGB (0–1)0.1647, 0.3373, 0.502
RGB percentages16.5%, 33.7%, 50.2%
HSLhsl(209.3, 50.6%, 33.3%)
HSV / HSBhsv(209.3, 67.2%, 50.2%)
CMYK67.2%, 32.8%, 0%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,774,656
CSS custom property--colour: #2A5680;

Brightness & contrast

Relative luminance0.08706WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.66:1
Contrast with white7.66:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#D5A97F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#445882no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#38507Fno green cones; the most common form, about 1% of men; ΔE 6.8 from the original
Tritanopia#006065no blue cones; rare, and affects men and women equally; ΔE 27.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.66:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Steel blue · ΔE 17.8Slate grey · ΔE 24.8Light slate grey · ΔE 26.7Dark slate grey · ΔE 27Dim grey · ΔE 29.5Dark slateblue · ΔE 30.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#80542A
Analogous#2A807F, #2A2B80
Triadic#802A56, #56802A
Split complementary#802A2B, #807F2A
Tetradic#7F2A80, #80542A, #2B802A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99BCDD
Lighter +30%#72A3D1
Lighter +20%#4C89C4
Lighter +10%#3770A6
Darker −10%#1D3C5A
Darker −20%#112233
Darker −30%#04090D
Darker −40%#000000
More saturated +25%#155695
Less saturated −25%#3F566B

Channel breakdown

R42
G86
B128
Red42 (16.5%)
Green86 (33.7%)
Blue128 (50.2%)
Hue209.3°
Saturation (HSL)50.59%
Lightness33.33%
Dominant channelBlue
Hex per channelR 2A · G 56 · B 80

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Every value on this page was computed from “2a5680” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.