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Colour

#28564D

  • #28564D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#28564D is a cyan with RGB values 40, 86, 77 and HSL 168°, 37%, 25%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#28564D#28564D
HEX#28564D
RGBrgb(40, 86, 77)
RGB (0–1)0.1569, 0.3373, 0.302
RGB percentages15.7%, 33.7%, 30.2%
HSLhsl(168.3, 36.5%, 24.7%)
HSV / HSBhsv(168.3, 53.5%, 33.7%)
CMYK53.5%, 0%, 10.5%, 66.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,643,533
CSS custom property--colour: #28564D;

Brightness & contrast

Relative luminance0.07643WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.31:1
Contrast with white8.31:1WCAG normal text: AAA
Contrast with black2.53:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#D7A9B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#53514Dno red cones; affects about 1% of men; ΔE 18.5 from the original
Deuteranopia#4B4C4Eno green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#125753no blue cones; rare, and affects men and women equally; ΔE 5.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.31:1WCAG large text: AAA
Contrast with black, large text2.53:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8Teal · ΔE 20.4Dim grey · ΔE 21.4Dark cyan · ΔE 24.5Gray · ΔE 27.4Slate grey · ΔE 27.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.01, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#562831
Analogous#285636, #284856
Triadic#4D2856, #564D28
Split complementary#562848, #563628
Tetradic#362856, #562831, #485628

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#84C6B9
Lighter +30%#61B6A5
Lighter +20%#489C8B
Lighter +10%#38796C
Darker −10%#18332E
Darker −20%#08100F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#186657
Less saturated −25%#384643

Channel breakdown

R40
G86
B77
Red40 (15.7%)
Green86 (33.7%)
Blue77 (30.2%)
Hue168.26°
Saturation (HSL)36.51%
Lightness24.71%
Dominant channelGreen
Hex per channelR 28 · G 56 · B 4D

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Every value on this page was computed from “28564d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.