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Recognised as Colour

#285C5F

  • #285C5F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#285C5F is a cyan with RGB values 40, 92, 95 and HSL 183°, 41%, 26%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#285C5F#285C5F
HEX#285C5F
RGBrgb(40, 92, 95)
RGB (0–1)0.1569, 0.3608, 0.3725
RGB percentages15.7%, 36.1%, 37.3%
HSLhsl(183.3, 40.7%, 26.5%)
HSV / HSBhsv(183.3, 57.9%, 37.3%)
CMYK57.9%, 3.2%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,645,087
CSS custom property--colour: #285C5F;

Brightness & contrast

Relative luminance0.08932WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.54:1
Contrast with white7.54:1WCAG normal text: AAA
Contrast with black2.79:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D7A3A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#56585Fno red cones; affects about 1% of men; ΔE 17.3 from the original
Deuteranopia#4D525Fno green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#005F5Dno blue cones; rare, and affects men and women equally; ΔE 7.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.54:1WCAG large text: AAA
Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.2Teal · ΔE 17.7Dim grey · ΔE 19.7Dark cyan · ΔE 21.9Slate grey · ΔE 22.4Light slate grey · ΔE 24.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.25, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F2B28
Analogous#285F46, #28415F
Triadic#5F285C, #5C5F28
Split complementary#5F2841, #5F4628
Tetradic#46285F, #5F2B28, #415F28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#87C9CC
Lighter +30%#63B8BD
Lighter +20%#46A2A7
Lighter +10%#377F83
Darker −10%#19393B
Darker −20%#0A1617
Darker −30%#000000
Darker −40%#000000
More saturated +25%#176B70
Less saturated −25%#394D4E

Channel breakdown

R40
G92
B95
Red40 (15.7%)
Green92 (36.1%)
Blue95 (37.3%)
Hue183.27°
Saturation (HSL)40.74%
Lightness26.47%
Dominant channelBlue
Hex per channelR 28 · G 5C · B 5F

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Every value on this page was computed from “285c5f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.