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Colour

#004539

  • #004539
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004539 is a cyan with RGB values 0, 69, 57 and HSL 170°, 100%, 14%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004539#004539
HEX#004539
RGBrgb(0, 69, 57)
RGB (0–1)0, 0.2706, 0.2235
RGB percentages0%, 27.1%, 22.4%
HSLhsl(169.6, 100%, 13.5%)
HSV / HSBhsv(169.6, 100%, 27.1%)
CMYK100%, 0%, 17.4%, 72.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,721
CSS custom property--colour: #004539;

Brightness & contrast

Relative luminance0.04552WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.99:1
Contrast with white10.99:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FFBAC6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#424038no red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#3A3A3Ano green cones; the most common form, about 1% of men; ΔE 23 from the original
Tritanopia#004641no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.99:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.7Teal · ΔE 25.7Dim grey · ΔE 29.8Dark cyan · ΔE 29.9Dark olivegreen · ΔE 33.6Black · ΔE 34.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.74, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#45000C
Analogous#004517, #002E45
Triadic#390045, #453900
Split complementary#45002E, #451700
Tetradic#170045, #45000C, #2E4500

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#12FFD6
Lighter +30%#00DEB7
Lighter +20%#00AB8D
Lighter +10%#007863
Darker −10%#00120F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004539
Less saturated −25%#093C33

Channel breakdown

R0
G69
B57
Red0 (0%)
Green69 (27.1%)
Blue57 (22.4%)
Hue169.57°
Saturation (HSL)100%
Lightness13.53%
Dominant channelGreen
Hex per channelR 00 · G 45 · B 39

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Every value on this page was computed from “hex 004539” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.