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Recognised as Colour

#58728A

  • #58728A
  • Blue
  • Dark
  • Nearest: Slate grey

#58728A is a blue with RGB values 88, 114, 138 and HSL 209°, 22%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#58728A#58728A
HEX#58728A
RGBrgb(88, 114, 138)
RGB (0–1)0.3451, 0.4471, 0.5412
RGB percentages34.5%, 44.7%, 54.1%
HSLhsl(208.8, 22.1%, 44.3%)
HSV / HSBhsv(208.8, 36.2%, 54.1%)
CMYK36.2%, 17.4%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,796,490
CSS custom property--colour: #58728A;

Brightness & contrast

Relative luminance0.15944WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.01:1
Contrast with white5.01:1WCAG normal text: AA
Contrast with black4.19:1WCAG normal text: Fail
Greyscale equivalent#6E6E6E
Inverted#A78D75

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#69728Bno red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#626D8Ano green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#48787Ano blue cones; rare, and affects men and women equally; ΔE 16 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.01:1WCAG large text: AAA
Contrast with black, large text4.19:1WCAG large text: AA

Named colours

Slate grey · ΔE 8.2Light slate grey · ΔE 10.4Dim grey · ΔE 16.7Steel blue · ΔE 17Gray · ΔE 17.8Dark slate grey · ΔE 21.7
Nearest named CSS colourSlate grey (#708090)ΔE 8.23, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A7058
Analogous#588A89, #58598A
Triadic#8A5872, #728A58
Split complementary#8A5859, #8A8958
Tetradic#89588A, #8A7058, #598A58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CED7E0
Lighter +30%#AFBECC
Lighter +20%#90A5B8
Lighter +10%#718CA4
Darker −10%#44586B
Darker −20%#303F4C
Darker −30%#1C252D
Darker −40%#090B0D
More saturated +25%#3C73A6
Less saturated −25%#717171

Channel breakdown

R88
G114
B138
Red88 (34.5%)
Green114 (44.7%)
Blue138 (54.1%)
Hue208.8°
Saturation (HSL)22.12%
Lightness44.31%
Dominant channelBlue
Hex per channelR 58 · G 72 · B 8A

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Every value on this page was computed from “58728a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.