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Colour

#42568C

  • #42568C
  • Blue
  • Dark
  • Nearest: Steel blue

#42568C is a blue with RGB values 66, 86, 140 and HSL 224°, 36%, 40%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#42568C#42568C
HEX#42568C
RGBrgb(66, 86, 140)
RGB (0–1)0.2588, 0.3373, 0.549
RGB percentages25.9%, 33.7%, 54.9%
HSLhsl(223.8, 35.9%, 40.4%)
HSV / HSBhsv(223.8, 52.9%, 54.9%)
CMYK52.9%, 38.6%, 0%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,347,532
CSS custom property--colour: #42568C;

Brightness & contrast

Relative luminance0.09707WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.14:1
Contrast with white7.14:1WCAG normal text: AAA
Contrast with black2.94:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#BDA973

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#415B8Eno red cones; affects about 1% of men; ΔE 3.4 from the original
Deuteranopia#39558Bno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#20626Ano blue cones; rare, and affects men and women equally; ΔE 34.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.14:1WCAG large text: AAA
Contrast with black, large text2.94:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19.8Dark slateblue · ΔE 21Slate grey · ΔE 28.9Cornflower blue · ΔE 29.9Light slate grey · ΔE 30.3Dim grey · ΔE 34.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 19.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C7842
Analogous#427B8C, #53428C
Triadic#8C4256, #568C42
Split complementary#8C5342, #7B8C42
Tetradic#8C427B, #8C7842, #428C53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBC5DF
Lighter +30%#98A7CF
Lighter +20%#7689BE
Lighter +10%#536CAE
Darker −10%#324169
Darker −20%#212B47
Darker −30%#111624
Darker −40%#010101
More saturated +25%#284AA6
Less saturated −25%#5C6272

Channel breakdown

R66
G86
B140
Red66 (25.9%)
Green86 (33.7%)
Blue140 (54.9%)
Hue223.78°
Saturation (HSL)35.92%
Lightness40.39%
Dominant channelBlue
Hex per channelR 42 · G 56 · B 8C

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Every value on this page was computed from “42568c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.