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Colour

#28569C

  • #28569C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#28569C is a blue with RGB values 40, 86, 156 and HSL 216°, 59%, 38%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#28569C#28569C
HEX#28569C
RGBrgb(40, 86, 156)
RGB (0–1)0.1569, 0.3373, 0.6118
RGB percentages15.7%, 33.7%, 61.2%
HSLhsl(216.2, 59.2%, 38.4%)
HSV / HSBhsv(216.2, 74.4%, 61.2%)
CMYK74.4%, 44.9%, 0%, 38.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,643,612
CSS custom property--colour: #28569C;

Brightness & contrast

Relative luminance0.09507WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.24:1
Contrast with white7.24:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D7A963

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#335D9Fno red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#1D529Bno green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#006671no blue cones; rare, and affects men and women equally; ΔE 42.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.24:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.7Steel blue · ΔE 23.1Cornflower blue · ΔE 25.8Royal blue · ΔE 30.2Dodgerblue · ΔE 30.5Midnight blue · ΔE 31.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9C6E28
Analogous#28909C, #34289C
Triadic#9C2856, #569C28
Split complementary#9C3428, #909C28
Tetradic#9C2890, #9C6E28, #289C34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7C1E9
Lighter +30%#7FA5DE
Lighter +20%#5688D4
Lighter +10%#326CC5
Darker −10%#1E4073
Darker −20%#13294B
Darker −30%#091322
Darker −40%#000000
More saturated +25%#1051B5
Less saturated −25%#415B84

Channel breakdown

R40
G86
B156
Red40 (15.7%)
Green86 (33.7%)
Blue156 (61.2%)
Hue216.21°
Saturation (HSL)59.18%
Lightness38.43%
Dominant channelBlue
Hex per channelR 28 · G 56 · B 9C

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Every value on this page was computed from “28569c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.