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Recognised as Colour

#286D8F

  • #286D8F
  • Cyan
  • Dark
  • Nearest: Steel blue

#286D8F is a cyan with RGB values 40, 109, 143 and HSL 200°, 56%, 36%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#286D8F#286D8F
HEX#286D8F
RGBrgb(40, 109, 143)
RGB (0–1)0.1569, 0.4275, 0.5608
RGB percentages15.7%, 42.7%, 56.1%
HSLhsl(199.8, 56.3%, 35.9%)
HSV / HSBhsv(199.8, 72%, 56.1%)
CMYK72%, 23.8%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,649,487
CSS custom property--colour: #286D8F;

Brightness & contrast

Relative luminance0.13372WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.72:1
Contrast with white5.72:1WCAG normal text: AA
Contrast with black3.67:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#D79270

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5C6C91no red cones; affects about 1% of men; ΔE 13.9 from the original
Deuteranopia#4E628Eno green cones; the most common form, about 1% of men; ΔE 14.8 from the original
Tritanopia#007678no blue cones; rare, and affects men and women equally; ΔE 23 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.72:1WCAG large text: AAA
Contrast with black, large text3.67:1WCAG large text: AA

Named colours

Steel blue · ΔE 13.1Slate grey · ΔE 18.8Light slate grey · ΔE 20.1Dark slate grey · ΔE 24.4Teal · ΔE 25.6Dim grey · ΔE 26.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.05, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F4A28
Analogous#288F7E, #28398F
Triadic#8F286D, #6D8F28
Split complementary#8F2839, #8F7E28
Tetradic#7E288F, #8F4A28, #398F28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9FCDE4
Lighter +30%#77B9D9
Lighter +20%#4FA4CE
Lighter +10%#338BB7
Darker −10%#1D4F67
Darker −20%#12303F
Darker −30%#071217
Darker −40%#000000
More saturated +25%#1175A6
Less saturated −25%#3F6578

Channel breakdown

R40
G109
B143
Red40 (15.7%)
Green109 (42.7%)
Blue143 (56.1%)
Hue199.81°
Saturation (HSL)56.28%
Lightness35.88%
Dominant channelBlue
Hex per channelR 28 · G 6D · B 8F

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Every value on this page was computed from “286d8f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.