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Recognised as Colour

#285C54

  • #285C54
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#285C54 is a cyan with RGB values 40, 92, 84 and HSL 171°, 39%, 26%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#285C54#285C54
HEX#285C54
RGBrgb(40, 92, 84)
RGB (0–1)0.1569, 0.3608, 0.3294
RGB percentages15.7%, 36.1%, 32.9%
HSLhsl(170.8, 39.4%, 25.9%)
HSV / HSBhsv(170.8, 56.5%, 36.1%)
CMYK56.5%, 0%, 8.7%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,645,076
CSS custom property--colour: #285C54;

Brightness & contrast

Relative luminance0.08746WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.64:1
Contrast with white7.64:1WCAG normal text: AAA
Contrast with black2.75:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#D7A3AB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#585754no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#505155no green cones; the most common form, about 1% of men; ΔE 20.2 from the original
Tritanopia#085E59no blue cones; rare, and affects men and women equally; ΔE 5.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.64:1WCAG large text: AAA
Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.4Teal · ΔE 17.6Dim grey · ΔE 21.5Dark cyan · ΔE 21.7Slate grey · ΔE 26.5Cadetblue · ΔE 26.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.42, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5C2830
Analogous#285C3A, #284A5C
Triadic#54285C, #5C5428
Split complementary#5C284A, #5C3A28
Tetradic#3A285C, #5C2830, #4A5C28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86CAC0
Lighter +30%#62BBAD
Lighter +20%#47A395
Lighter +10%#378074
Darker −10%#193834
Darker −20%#091513
Darker −30%#000000
Darker −40%#000000
More saturated +25%#176C5F
Less saturated −25%#384B49

Channel breakdown

R40
G92
B84
Red40 (15.7%)
Green92 (36.1%)
Blue84 (32.9%)
Hue170.77°
Saturation (HSL)39.39%
Lightness25.88%
Dominant channelGreen
Hex per channelR 28 · G 5C · B 54

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Every value on this page was computed from “285c54” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.