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Recognised as Colour

#427A88

  • #427A88
  • Cyan
  • Dark
  • Nearest: Slate grey

#427A88 is a cyan with RGB values 66, 122, 136 and HSL 192°, 35%, 40%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#427A88#427A88
HEX#427A88
RGBrgb(66, 122, 136)
RGB (0–1)0.2588, 0.4784, 0.5333
RGB percentages25.9%, 47.8%, 53.3%
HSLhsl(192, 34.7%, 39.6%)
HSV / HSBhsv(192, 51.5%, 53.3%)
CMYK51.5%, 10.3%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,356,744
CSS custom property--colour: #427A88;

Brightness & contrast

Relative luminance0.16855WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.8:1
Contrast with white4.8:1WCAG normal text: AA
Contrast with black4.37:1WCAG normal text: Fail
Greyscale equivalent#6F6F6F
Inverted#BD8577

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#707789no red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#656F88no green cones; the most common form, about 1% of men; ΔE 16.7 from the original
Tritanopia#197F7Eno blue cones; rare, and affects men and women equally; ΔE 14.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.8:1WCAG large text: AAA
Contrast with black, large text4.37:1WCAG large text: AA

Named colours

Slate grey · ΔE 13.4Light slate grey · ΔE 14.6Teal · ΔE 15.3Cadetblue · ΔE 15.3Dark cyan · ΔE 17.3Dark slate grey · ΔE 19.5
Nearest named CSS colourSlate grey (#708090)ΔE 13.39, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#885042
Analogous#428873, #425788
Triadic#88427A, #7A8842
Split complementary#884257, #887342
Tetradic#734288, #885042, #578842

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9D6DD
Lighter +30%#97C2CC
Lighter +20%#74ADBC
Lighter +10%#5399AA
Darker −10%#315B66
Darker −20%#213C43
Darker −30%#101E21
Darker −40%#000000
More saturated +25%#2989A1
Less saturated −25%#5B6B6F

Channel breakdown

R66
G122
B136
Red66 (25.9%)
Green122 (47.8%)
Blue136 (53.3%)
Hue192°
Saturation (HSL)34.65%
Lightness39.61%
Dominant channelBlue
Hex per channelR 42 · G 7A · B 88

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Every value on this page was computed from “427a88” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.