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Recognised as Colour

#40ADA3

  • #40ADA3
  • Cyan
  • Dark
  • Nearest: Light seagreen

#40ADA3 is a cyan with RGB values 64, 173, 163 and HSL 174°, 46%, 46%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#40ADA3#40ADA3
HEX#40ADA3
RGBrgb(64, 173, 163)
RGB (0–1)0.251, 0.6784, 0.6392
RGB percentages25.1%, 67.8%, 63.9%
HSLhsl(174.5, 46%, 46.5%)
HSV / HSBhsv(174.5, 63%, 67.8%)
CMYK63%, 0%, 5.8%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,238,755
CSS custom property--colour: #40ADA3;

Brightness & contrast

Relative luminance0.33621WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.72:1
Contrast with white2.72:1WCAG normal text: Fail
Contrast with black7.72:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#BF525C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A4A4A3no red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#9498A4no green cones; the most common form, about 1% of men; ΔE 34.3 from the original
Tritanopia#00B1AAno blue cones; rare, and affects men and women equally; ΔE 6.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.72:1WCAG large text: Fail
Contrast with black, large text7.72:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 5.1Dark cyan · ΔE 13.6Medium turquoise · ΔE 13.6Cadetblue · ΔE 14.3Dark turquoise · ΔE 15.8Medium aquamarine · ΔE 17.4
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 5.09, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD404A
Analogous#40AD6C, #4081AD
Triadic#A340AD, #ADA340
Split complementary#AD4081, #AD6C40
Tetradic#6C40AD, #AD404A, #81AD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDECE9
Lighter +30%#A7DFDA
Lighter +20%#82D1CA
Lighter +10%#5DC3BA
Darker −10%#328880
Darker −20%#24635D
Darker −30%#173D3A
Darker −40%#091817
More saturated +25%#22CBBB
Less saturated −25%#5E8F8B

Channel breakdown

R64
G173
B163
Red64 (25.1%)
Green173 (67.8%)
Blue163 (63.9%)
Hue174.5°
Saturation (HSL)45.99%
Lightness46.47%
Dominant channelGreen
Hex per channelR 40 · G AD · B A3

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Every value on this page was computed from “40ada3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.