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Colour

#40BDB8

  • #40BDB8
  • Cyan
  • Dark
  • Nearest: Light seagreen

#40BDB8 is a cyan with RGB values 64, 189, 184 and HSL 178°, 49%, 50%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#40BDB8#40BDB8
HEX#40BDB8
RGBrgb(64, 189, 184)
RGB (0–1)0.251, 0.7412, 0.7216
RGB percentages25.1%, 74.1%, 72.2%
HSLhsl(177.6, 49.4%, 49.6%)
HSV / HSBhsv(177.6, 66.1%, 74.1%)
CMYK66.1%, 0%, 2.6%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,242,872
CSS custom property--colour: #40BDB8;

Brightness & contrast

Relative luminance0.40946WCAG 2.x, 0 is black and 1 is white
Perceived brightness161.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.19:1
Contrast with white2.29:1WCAG normal text: Fail
Contrast with black9.19:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#BF4247

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B2B3B8no red cones; affects about 1% of men; ΔE 35.9 from the original
Deuteranopia#9FA6B9no green cones; the most common form, about 1% of men; ΔE 36.4 from the original
Tritanopia#00C2BBno 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 text2.29:1WCAG large text: Fail
Contrast with black, large text9.19:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 5.3Medium turquoise · ΔE 7.3Dark turquoise · ΔE 9.5Turquoise · ΔE 14.9Medium aquamarine · ΔE 17.2Cadetblue · ΔE 17.6
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 5.25, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD4045
Analogous#40BD7A, #4083BD
Triadic#B840BD, #BDB840
Split complementary#BD4084, #BD7A40
Tetradic#7A40BD, #BD4045, #83BD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7F2F1
Lighter +30%#B1E5E3
Lighter +20%#8BD8D5
Lighter +10%#65CBC7
Darker −10%#339793
Darker −20%#26716E
Darker −30%#194B49
Darker −40%#0C2524
More saturated +25%#20DDD5
Less saturated −25%#609D9B

Channel breakdown

R64
G189
B184
Red64 (25.1%)
Green189 (74.1%)
Blue184 (72.2%)
Hue177.6°
Saturation (HSL)49.41%
Lightness49.61%
Dominant channelGreen
Hex per channelR 40 · G BD · B B8

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Every value on this page was computed from “40bdb8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.