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Recognised as Colour

#1BCBDB

  • #1BCBDB
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#1BCBDB is a cyan with RGB values 27, 203, 219 and HSL 185°, 78%, 48%. It is a dark colour, so black text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#1BCBDB#1BCBDB
HEX#1BCBDB
RGBrgb(27, 203, 219)
RGB (0–1)0.1059, 0.7961, 0.8588
RGB percentages10.6%, 79.6%, 85.9%
HSLhsl(185, 78%, 48.2%)
HSV / HSBhsv(185, 87.7%, 85.9%)
CMYK87.7%, 7.3%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,821,659
CSS custom property--colour: #1BCBDB;

Brightness & contrast

Relative luminance0.48059WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.61:1
Contrast with white1.98:1WCAG normal text: Fail
Contrast with black10.61:1WCAG normal text: AAA
Greyscale equivalent#A7A7A7
Inverted#E43424

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B9C2DCno red cones; affects about 1% of men; ΔE 37.4 from the original
Deuteranopia#A1B1DBno green cones; the most common form, about 1% of men; ΔE 38.7 from the original
Tritanopia#00D4D0no blue cones; rare, and affects men and women equally; ΔE 12.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.98:1WCAG large text: Fail
Contrast with black, large text10.61:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 8.1Medium turquoise · ΔE 11.7Light seagreen · ΔE 16.3Turquoise · ΔE 19.3Sky blue · ΔE 20.4Aqua · ΔE 21.8
Nearest named CSS colourDark turquoise (#00CED1)ΔE 8.1, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DB2B1B
Analogous#1BDB8B, #1B6BDB
Triadic#DB1BCB, #CBDB1B
Split complementary#DB1B6B, #DB8B1B
Tetradic#8B1BDB, #DB2B1B, #6BDB1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CAF5F8
Lighter +30%#9CECF3
Lighter +20%#6FE3ED
Lighter +10%#41DAE8
Darker −10%#15A1AE
Darker −20%#107780
Darker −30%#0A4D53
Darker −40%#052325
More saturated +25%#00E1F6
Less saturated −25%#3AB1BC

Channel breakdown

R27
G203
B219
Red27 (10.6%)
Green203 (79.6%)
Blue219 (85.9%)
Hue185°
Saturation (HSL)78.05%
Lightness48.24%
Dominant channelBlue
Hex per channelR 1B · G CB · B DB

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Every value on this page was computed from “1bcbdb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.