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Recognised as Colour

#2BB1BB

  • #2BB1BB
  • Cyan
  • Dark
  • Nearest: Light seagreen

#2BB1BB is a cyan with RGB values 43, 177, 187 and HSL 184°, 63%, 45%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#2BB1BB#2BB1BB
HEX#2BB1BB
RGBrgb(43, 177, 187)
RGB (0–1)0.1686, 0.6941, 0.7333
RGB percentages16.9%, 69.4%, 73.3%
HSLhsl(184.2, 62.6%, 45.1%)
HSV / HSBhsv(184.2, 77%, 73.3%)
CMYK77%, 5.3%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,863,547
CSS custom property--colour: #2BB1BB;

Brightness & contrast

Relative luminance0.35546WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.11:1
Contrast with white2.59:1WCAG normal text: Fail
Contrast with black8.11:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#D44E44

Colour vision & accessibility

Protanopia#A3A9BCno red cones; affects about 1% of men; ΔE 33.2 from the original
Deuteranopia#8F9BBCno green cones; the most common form, about 1% of men; ΔE 34.2 from the original
Tritanopia#00B8B4no blue cones; rare, and affects men and women equally; ΔE 10.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.59:1WCAG large text: Fail
Contrast with black, large text8.11:1WCAG large text: AAA

Named colours

Nearest named CSS colourLight seagreen (#20B2AA)ΔE 11.03, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#BB352B
Analogous#2BBB7D, #2B69BB
Triadic#BB2BB1, #B1BB2B
Split complementary#BB2B69, #BB7D2B
Tetradic#7D2BBB, #BB352B, #69BB2B

Tints, shades & saturation

Lighter +40%#C1EDF1
Lighter +30%#98E2E7
Lighter +20%#6ED6DE
Lighter +10%#45CAD4
Darker −10%#218A92
Darker −20%#186368
Darker −30%#0E3B3F
Darker −40%#051415
More saturated +25%#0ECAD8
Less saturated −25%#48989E

Channel breakdown

R43
G177
B187
Red43 (16.9%)
Green177 (69.4%)
Blue187 (73.3%)
Hue184.17°
Saturation (HSL)62.61%
Lightness45.1%
Dominant channelBlue
Hex per channelR 2B · G B1 · B BB

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Every value on this page was computed from “2bb1bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.