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Recognised as Colour

#40E4BD

  • #40E4BD
  • Cyan
  • Light
  • Nearest: Aquamarine

#40E4BD is a cyan with RGB values 64, 228, 189 and HSL 166°, 75%, 57%. It is a light colour, so black text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#40E4BD#40E4BD
HEX#40E4BD
RGBrgb(64, 228, 189)
RGB (0–1)0.251, 0.8941, 0.7412
RGB percentages25.1%, 89.4%, 74.1%
HSLhsl(165.7, 75.2%, 57.3%)
HSV / HSBhsv(165.7, 71.9%, 89.4%)
CMYK71.9%, 0%, 17.1%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,252,861
CSS custom property--colour: #40E4BD;

Brightness & contrast

Relative luminance0.60251WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.05:1
Contrast with white1.61:1WCAG normal text: Fail
Contrast with black13.05:1WCAG normal text: AAA
Greyscale equivalent#BEBEBE
Inverted#BF1B42

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#DDD5BBno red cones; affects about 1% of men; ΔE 49.7 from the original
Deuteranopia#C7C5C0no green cones; the most common form, about 1% of men; ΔE 50.7 from the original
Tritanopia#00E6D9no blue cones; rare, and affects men and women equally; ΔE 14 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.61:1WCAG large text: Fail
Contrast with black, large text13.05:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 11.6Turquoise · ΔE 12.9Medium aquamarine · ΔE 13.9Medium turquoise · ΔE 21Aqua · ΔE 23.2Cyan · ΔE 23.2
Nearest named CSS colourAquamarine (#7FFFD4)ΔE 11.59, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E44067
Analogous#40E46B, #40B9E4
Triadic#BD40E4, #E4BD40
Split complementary#E440B9, #E46B40
Tetradic#6B40E4, #E44067, #B9E440

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3FDFB
Lighter +30%#C6F7EB
Lighter +20%#99F1DC
Lighter +10%#6DEACC
Darker −10%#1ED3A8
Darker −20%#18A684
Darker −30%#117A61
Darker −40%#0B4D3D
More saturated +25%#25FFCB
Less saturated −25%#5BC9AF

Channel breakdown

R64
G228
B189
Red64 (25.1%)
Green228 (89.4%)
Blue189 (74.1%)
Hue165.73°
Saturation (HSL)75.23%
Lightness57.25%
Dominant channelGreen
Hex per channelR 40 · G E4 · B BD

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Every value on this page was computed from “40e4bd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.