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Recognised as Colour

#40B8AC

  • #40B8AC
  • Cyan
  • Dark
  • Nearest: Light seagreen

#40B8AC is a cyan with RGB values 64, 184, 172 and HSL 174°, 48%, 49%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#40B8AC#40B8AC
HEX#40B8AC
RGBrgb(64, 184, 172)
RGB (0–1)0.251, 0.7216, 0.6745
RGB percentages25.1%, 72.2%, 67.5%
HSLhsl(174, 48.4%, 48.6%)
HSV / HSBhsv(174, 65.2%, 72.2%)
CMYK65.2%, 0%, 6.5%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,241,580
CSS custom property--colour: #40B8AC;

Brightness & contrast

Relative luminance0.3835WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.67:1
Contrast with white2.42:1WCAG normal text: Fail
Contrast with black8.67:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#BF4753

Colour vision & accessibility

Protanopia#AFAEACno red cones; affects about 1% of men; ΔE 36.2 from the original
Deuteranopia#9DA1ADno green cones; the most common form, about 1% of men; ΔE 37 from the original
Tritanopia#00BCB4no blue cones; rare, and affects men and women equally; ΔE 6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.42:1WCAG large text: Fail
Contrast with black, large text8.67:1WCAG large text: AAA

Named colours

Nearest named CSS colourLight seagreen (#20B2AA)ΔE 4.01, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#B8404C
Analogous#40B870, #4088B8
Triadic#AC40B8, #B8AC40
Split complementary#B84088, #B87040
Tetradic#7040B8, #B8404C, #88B840

Tints, shades & saturation

Lighter +40%#D4F0ED
Lighter +30%#AEE3DE
Lighter +20%#88D6CE
Lighter +10%#62C9BE
Darker −10%#339289
Darker −20%#266C65
Darker −30%#194642
Darker −40%#0B211F
More saturated +25%#21D7C5
Less saturated −25%#5F9993

Channel breakdown

R64
G184
B172
Red64 (25.1%)
Green184 (72.2%)
Blue172 (67.5%)
Hue174°
Saturation (HSL)48.39%
Lightness48.63%
Dominant channelGreen
Hex per channelR 40 · G B8 · B AC

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Every value on this page was computed from “40b8ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.