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Recognised as Colour

#19B4BB

  • #19B4BB
  • Cyan
  • Dark
  • Nearest: Light seagreen

#19B4BB is a cyan with RGB values 25, 180, 187 and HSL 183°, 76%, 42%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#19B4BB#19B4BB
HEX#19B4BB
RGBrgb(25, 180, 187)
RGB (0–1)0.098, 0.7059, 0.7333
RGB percentages9.8%, 70.6%, 73.3%
HSLhsl(182.6, 76.4%, 41.6%)
HSV / HSBhsv(182.6, 86.6%, 73.3%)
CMYK86.6%, 3.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,684,667
CSS custom property--colour: #19B4BB;

Brightness & contrast

Relative luminance0.36437WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.29:1
Contrast with white2.53:1WCAG normal text: Fail
Contrast with black8.29:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#E64B44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A6ABBCno red cones; affects about 1% of men; ΔE 36 from the original
Deuteranopia#919CBCno green cones; the most common form, about 1% of men; ΔE 37.2 from the original
Tritanopia#00BBB6no blue cones; rare, and affects men and women equally; ΔE 8.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.53:1WCAG large text: Fail
Contrast with black, large text8.29:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 8.7Dark turquoise · ΔE 10.5Medium turquoise · ΔE 12.1Dark cyan · ΔE 15.9Cadetblue · ΔE 16.7Teal · ΔE 20.1
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 8.72, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB2019
Analogous#19BB71, #1963BB
Triadic#BB19B4, #B4BB19
Split complementary#BB1963, #BB7119
Tetradic#7119BB, #BB2019, #63BB19

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACF1F4
Lighter +30%#7FE9EE
Lighter +20%#52E1E8
Lighter +10%#25DAE2
Darker −10%#13898E
Darker −20%#0D5D61
Darker −30%#073234
Darker −40%#010707
More saturated +25%#00CBD4
Less saturated −25%#349CA1

Channel breakdown

R25
G180
B187
Red25 (9.8%)
Green180 (70.6%)
Blue187 (73.3%)
Hue182.59°
Saturation (HSL)76.42%
Lightness41.57%
Dominant channelBlue
Hex per channelR 19 · G B4 · B BB

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Every value on this page was computed from “19b4bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.