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Recognised as Colour

#285C59

  • #285C59
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#285C59 is a cyan with RGB values 40, 92, 89 and HSL 177°, 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

#285C59#285C59
HEX#285C59
RGBrgb(40, 92, 89)
RGB (0–1)0.1569, 0.3608, 0.349
RGB percentages15.7%, 36.1%, 34.9%
HSLhsl(176.5, 39.4%, 25.9%)
HSV / HSBhsv(176.5, 56.5%, 36.1%)
CMYK56.5%, 0%, 3.3%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,645,081
CSS custom property--colour: #285C59;

Brightness & contrast

Relative luminance0.08827WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.59:1
Contrast with white7.59:1WCAG normal text: AAA
Contrast with black2.77:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D7A3A6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#575859no red cones; affects about 1% of men; ΔE 18.2 from the original
Deuteranopia#4E515Ano green cones; the most common form, about 1% of men; ΔE 19.1 from the original
Tritanopia#025E5Bno blue cones; rare, and affects men and women equally; ΔE 6.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.59:1WCAG large text: AAA
Contrast with black, large text2.77:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.7Teal · ΔE 17.3Dim grey · ΔE 20.4Dark cyan · ΔE 21.5Slate grey · ΔE 24.5Gray · ΔE 25.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.75, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5C282B
Analogous#285C3F, #28455C
Triadic#59285C, #5C5928
Split complementary#5C2845, #5C3F28
Tetradic#3F285C, #5C282B, #455C28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86CAC6
Lighter +30%#62BBB6
Lighter +20%#47A39E
Lighter +10%#37807B
Darker −10%#193837
Darker −20%#091514
Darker −30%#000000
Darker −40%#000000
More saturated +25%#176C68
Less saturated −25%#384B4A

Channel breakdown

R40
G92
B89
Red40 (15.7%)
Green92 (36.1%)
Blue89 (34.9%)
Hue176.54°
Saturation (HSL)39.39%
Lightness25.88%
Dominant channelGreen
Hex per channelR 28 · G 5C · B 59

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Every value on this page was computed from “285c59” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.