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Colour

#40B2BD

  • #40B2BD
  • Cyan
  • Dark
  • Nearest: Cadetblue

#40B2BD is a cyan with RGB values 64, 178, 189 and HSL 185°, 49%, 50%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.

Colour values

#40B2BD#40B2BD
HEX#40B2BD
RGBrgb(64, 178, 189)
RGB (0–1)0.251, 0.698, 0.7412
RGB percentages25.1%, 69.8%, 74.1%
HSLhsl(185.3, 49.4%, 49.6%)
HSV / HSBhsv(185.3, 66.1%, 74.1%)
CMYK66.1%, 5.8%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,240,061
CSS custom property--colour: #40B2BD;

Brightness & contrast

Relative luminance0.36605WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.32:1
Contrast with white2.52:1WCAG normal text: Fail
Contrast with black8.32:1WCAG normal text: AAA
Greyscale equivalent#9B9B9B
Inverted#BF4D42

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A4ABBEno red cones; affects about 1% of men; ΔE 30 from the original
Deuteranopia#929DBDno green cones; the most common form, about 1% of men; ΔE 31.4 from the original
Tritanopia#00B9B5no blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.52:1WCAG large text: Fail
Contrast with black, large text8.32:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 12.7Light seagreen · ΔE 12.9Dark turquoise · ΔE 14.6Medium turquoise · ΔE 15.1Dark cyan · ΔE 16.1Sky blue · ΔE 19.1
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 12.75, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD4B40
Analogous#40BD89, #4074BD
Triadic#BD40B2, #B2BD40
Split complementary#BD4074, #BD8940
Tetradic#8940BD, #BD4B40, #74BD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7EFF2
Lighter +30%#B1E0E5
Lighter +20%#8BD1D8
Lighter +10%#65C2CB
Darker −10%#338E97
Darker −20%#266A71
Darker −30%#19464B
Darker −40%#0C2225
More saturated +25%#20CCDD
Less saturated −25%#60989D

Channel breakdown

R64
G178
B189
Red64 (25.1%)
Green178 (69.8%)
Blue189 (74.1%)
Hue185.28°
Saturation (HSL)49.41%
Lightness49.61%
Dominant channelBlue
Hex per channelR 40 · G B2 · B BD

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Every value on this page was computed from “40b2bd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.