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Recognised as Colour

#20579F

  • #20579F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#20579F is a blue with RGB values 32, 87, 159 and HSL 214°, 66%, 37%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#20579F#20579F
HEX#20579F
RGBrgb(32, 87, 159)
RGB (0–1)0.1255, 0.3412, 0.6235
RGB percentages12.5%, 34.1%, 62.4%
HSLhsl(214, 66.5%, 37.5%)
HSV / HSBhsv(214, 79.9%, 62.4%)
CMYK79.9%, 45.3%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,119,583
CSS custom property--colour: #20579F;

Brightness & contrast

Relative luminance0.09627WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.18:1
Contrast with white7.18:1WCAG normal text: AAA
Contrast with black2.93:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#DFA860

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#325EA2no red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#17529Eno green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#006873no blue cones; rare, and affects men and women equally; ΔE 43 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.18:1WCAG large text: AAA
Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.4Steel blue · ΔE 23.4Cornflower blue · ΔE 25.3Royal blue · ΔE 29.3Dodgerblue · ΔE 29.4Slate blue · ΔE 31.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F6820
Analogous#20979F, #28209F
Triadic#9F2057, #579F20
Split complementary#9F2820, #979F20
Tetradic#9F2097, #9F6820, #209F28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9FC0EC
Lighter +30%#75A5E3
Lighter +20%#4A89DB
Lighter +10%#296EC9
Darker −10%#174075
Darker −20%#0F294A
Darker −30%#061120
Darker −40%#000000
More saturated +25%#0854B7
Less saturated −25%#385A87

Channel breakdown

R32
G87
B159
Red32 (12.5%)
Green87 (34.1%)
Blue159 (62.4%)
Hue214.02°
Saturation (HSL)66.49%
Lightness37.45%
Dominant channelBlue
Hex per channelR 20 · G 57 · B 9F

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Every value on this page was computed from “20579f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.