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Recognised as Colour

#28B9A6

  • #28B9A6
  • Cyan
  • Dark
  • Nearest: Light seagreen

#28B9A6 is a cyan with RGB values 40, 185, 166 and HSL 172°, 64%, 44%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#28B9A6#28B9A6
HEX#28B9A6
RGBrgb(40, 185, 166)
RGB (0–1)0.1569, 0.7255, 0.651
RGB percentages15.7%, 72.5%, 65.1%
HSLhsl(172.1, 64.4%, 44.1%)
HSV / HSBhsv(172.1, 78.4%, 72.5%)
CMYK78.4%, 0%, 10.3%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,668,966
CSS custom property--colour: #28B9A6;

Brightness & contrast

Relative luminance0.37902WCAG 2.x, 0 is black and 1 is white
Perceived brightness154 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.58:1
Contrast with white2.45:1WCAG normal text: Fail
Contrast with black8.58:1WCAG normal text: AAA
Greyscale equivalent#999999
Inverted#D74659

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B0AEA5no red cones; affects about 1% of men; ΔE 40.6 from the original
Deuteranopia#9DA0A8no green cones; the most common form, about 1% of men; ΔE 41.8 from the original
Tritanopia#00BDB3no blue cones; rare, and affects men and women equally; ΔE 5.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.45:1WCAG large text: Fail
Contrast with black, large text8.58:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 6.8Medium turquoise · ΔE 12.2Medium aquamarine · ΔE 12.3Turquoise · ΔE 14Dark turquoise · ΔE 14.6Dark cyan · ΔE 20.5
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 6.81, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B9283B
Analogous#28B95E, #2883B9
Triadic#A628B9, #B9A628
Split complementary#B92883, #B95E28
Tetradic#5E28B9, #B9283B, #83B928

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCF1EA
Lighter +30%#92E8DC
Lighter +20%#69DECF
Lighter +10%#3FD5C2
Darker −10%#1F8F80
Darker −20%#16655B
Darker −30%#0D3B35
Darker −40%#04110F
More saturated +25%#0CD5BB
Less saturated −25%#449D91

Channel breakdown

R40
G185
B166
Red40 (15.7%)
Green185 (72.5%)
Blue166 (65.1%)
Hue172.14°
Saturation (HSL)64.44%
Lightness44.12%
Dominant channelGreen
Hex per channelR 28 · G B9 · B A6

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Every value on this page was computed from “28b9a6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.