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Recognised as Colour

#427D89

  • #427D89
  • Cyan
  • Dark
  • Nearest: Cadetblue

#427D89 is a cyan with RGB values 66, 125, 137 and HSL 190°, 35%, 40%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#427D89#427D89
HEX#427D89
RGBrgb(66, 125, 137)
RGB (0–1)0.2588, 0.4902, 0.5373
RGB percentages25.9%, 49%, 53.7%
HSLhsl(190.1, 35%, 39.8%)
HSV / HSBhsv(190.1, 51.8%, 53.7%)
CMYK51.8%, 8.8%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,357,513
CSS custom property--colour: #427D89;

Brightness & contrast

Relative luminance0.17632WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.64:1
Contrast with white4.64:1WCAG normal text: AA
Contrast with black4.53:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#BD8276

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#73798Ano red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#687189no green cones; the most common form, about 1% of men; ΔE 18.1 from the original
Tritanopia#168281no blue cones; rare, and affects men and women equally; ΔE 13.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.64:1WCAG large text: AAA
Contrast with black, large text4.53:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 13.7Teal · ΔE 13.7Slate grey · ΔE 14.2Light slate grey · ΔE 15.2Dark cyan · ΔE 15.6Dark slate grey · ΔE 20.2
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 13.69, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#894E42
Analogous#428972, #425A89
Triadic#89427D, #7D8942
Split complementary#89425A, #897242
Tetradic#724289, #894E42, #5A8942

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9D7DE
Lighter +30%#97C4CD
Lighter +20%#75B0BC
Lighter +10%#539CAB
Darker −10%#315E67
Darker −20%#213E44
Darker −30%#101F22
Darker −40%#000000
More saturated +25%#298EA2
Less saturated −25%#5B6C70

Channel breakdown

R66
G125
B137
Red66 (25.9%)
Green125 (49%)
Blue137 (53.7%)
Hue190.14°
Saturation (HSL)34.98%
Lightness39.8%
Dominant channelBlue
Hex per channelR 42 · G 7D · B 89

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Every value on this page was computed from “427d89” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.