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Recognised as Colour

#40FFB5

  • #40FFB5
  • Cyan
  • Light
  • Nearest: Medium spring green

#40FFB5 is a cyan with RGB values 64, 255, 181 and HSL 157°, 100%, 63%. It is a light colour, so black text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Medium spring green.

Colour values

#40FFB5#40FFB5
HEX#40FFB5
RGBrgb(64, 255, 181)
RGB (0–1)0.251, 1, 0.7098
RGB percentages25.1%, 100%, 71%
HSLhsl(156.8, 100%, 62.5%)
HSV / HSBhsv(156.8, 74.9%, 100%)
CMYK74.9%, 0%, 29%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,259,765
CSS custom property--colour: #40FFB5;

Brightness & contrast

Relative luminance0.75946WCAG 2.x, 0 is black and 1 is white
Perceived brightness207.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.19:1
Contrast with white1.3:1WCAG normal text: Fail
Contrast with black16.19:1WCAG normal text: AAA
Greyscale equivalent#D1D1D1
Inverted#BF004A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FBECB1no red cones; affects about 1% of men; ΔE 60.1 from the original
Deuteranopia#E4DBBAno green cones; the most common form, about 1% of men; ΔE 61 from the original
Tritanopia#00FEEBno blue cones; rare, and affects men and women equally; ΔE 29 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.3:1WCAG large text: Fail
Contrast with black, large text16.19:1WCAG large text: AAA

Named colours

Medium spring green · ΔE 13Aquamarine · ΔE 21.7Pale green · ΔE 21.9Light green · ΔE 22.4Spring green · ΔE 28.4Medium seagreen · ΔE 28.7
Nearest named CSS colourMedium spring green (#00FA9A)ΔE 12.98, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF408A
Analogous#40FF55, #40EAFF
Triadic#B540FF, #FFB540
Split complementary#FF40EA, #FF5540
Tetradic#5540FF, #FF408A, #EAFF40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9FFF0
Lighter +20%#A6FFDD
Lighter +10%#73FFC9
Darker −10%#0DFFA1
Darker −20%#00D985
Darker −30%#00A666
Darker −40%#007346
More saturated +25%#40FFB5
Less saturated −25%#58E7B0

Channel breakdown

R64
G255
B181
Red64 (25.1%)
Green255 (100%)
Blue181 (71%)
Hue156.75°
Saturation (HSL)100%
Lightness62.55%
Dominant channelGreen
Hex per channelR 40 · G FF · B B5

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Every value on this page was computed from “40ffb5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.