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Colour

#548AA9

  • #548AA9
  • Blue
  • Dark
  • Nearest: Steel blue

#548AA9 is a blue with RGB values 84, 138, 169 and HSL 202°, 34%, 50%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#548AA9#548AA9
HEX#548AA9
RGBrgb(84, 138, 169)
RGB (0–1)0.3294, 0.5412, 0.6627
RGB percentages32.9%, 54.1%, 66.3%
HSLhsl(201.9, 33.6%, 49.6%)
HSV / HSBhsv(201.9, 50.3%, 66.3%)
CMYK50.3%, 18.3%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,540,521
CSS custom property--colour: #548AA9;

Brightness & contrast

Relative luminance0.22926WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.59:1
Contrast with white3.76:1WCAG normal text: Fail
Contrast with black5.59:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#AB7556

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B89ABno red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#7080A9no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#289294no blue cones; rare, and affects men and women equally; ΔE 22.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.76:1WCAG large text: AA
Contrast with black, large text5.59:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.7Light slate grey · ΔE 12.8Slate grey · ΔE 13.5Cadetblue · ΔE 19Gray · ΔE 23.8Teal · ΔE 24.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.72, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A97354
Analogous#54A99E, #5460A9
Triadic#A9548A, #8AA954
Split complementary#A95460, #A99E54
Tetradic#9D54A9, #A97354, #60A954

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCE7ED
Lighter +30%#BAD0DC
Lighter +20%#97B9CC
Lighter +10%#75A1BB
Darker −10%#436E87
Darker −20%#325265
Darker −30%#213743
Darker −40%#101B21
More saturated +25%#3493C9
Less saturated −25%#748189

Channel breakdown

R84
G138
B169
Red84 (32.9%)
Green138 (54.1%)
Blue169 (66.3%)
Hue201.88°
Saturation (HSL)33.6%
Lightness49.61%
Dominant channelBlue
Hex per channelR 54 · G 8A · B A9

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Every value on this page was computed from “548aa9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.