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Recognised as Colour

#40D2CF

  • #40D2CF
  • Cyan
  • Light
  • Nearest: Medium turquoise

#40D2CF is a cyan with RGB values 64, 210, 207 and HSL 179°, 62%, 54%. It is a light colour, so black text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#40D2CF#40D2CF
HEX#40D2CF
RGBrgb(64, 210, 207)
RGB (0–1)0.251, 0.8235, 0.8118
RGB percentages25.1%, 82.4%, 81.2%
HSLhsl(178.8, 61.9%, 53.7%)
HSV / HSBhsv(178.8, 69.5%, 82.4%)
CMYK69.5%, 0%, 1.4%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,248,271
CSS custom property--colour: #40D2CF;

Brightness & contrast

Relative luminance0.51688WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.34:1
Contrast with white1.85:1WCAG normal text: Fail
Contrast with black11.34:1WCAG normal text: AAA
Greyscale equivalent#B3B3B3
Inverted#BF2D30

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C5C8CFno red cones; affects about 1% of men; ΔE 39 from the original
Deuteranopia#AFB8D0no green cones; the most common form, about 1% of men; ΔE 40.1 from the original
Tritanopia#00D8D1no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.85:1WCAG large text: Fail
Contrast with black, large text11.34:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 1.5Dark turquoise · ΔE 4.7Turquoise · ΔE 9.2Light seagreen · ΔE 11.8Aqua · ΔE 17.8Cyan · ΔE 17.8
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 1.53, below the just-noticeable difference
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D24043
Analogous#40D286, #408CD2
Triadic#CF40D2, #D2CF40
Split complementary#D2408C, #D28640
Tetradic#8640D2, #D24043, #8CD240

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5F9F8
Lighter +30%#BCEFEE
Lighter +20%#93E5E4
Lighter +10%#69DCD9
Darker −10%#2BB4B2
Darker −20%#218B89
Darker −30%#176260
Darker −40%#0D3938
More saturated +25%#23F0EB
Less saturated −25%#5EB4B3

Channel breakdown

R64
G210
B207
Red64 (25.1%)
Green210 (82.4%)
Blue207 (81.2%)
Hue178.77°
Saturation (HSL)61.86%
Lightness53.73%
Dominant channelGreen
Hex per channelR 40 · G D2 · B CF

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Every value on this page was computed from “40d2cf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.