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Recognised as Colour

#1DD3DF

  • #1DD3DF
  • Cyan
  • Light
  • Nearest: Dark turquoise

#1DD3DF is a cyan with RGB values 29, 211, 223 and HSL 184°, 77%, 49%. It is a light colour, so black text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#1DD3DF#1DD3DF
HEX#1DD3DF
RGBrgb(29, 211, 223)
RGB (0–1)0.1137, 0.8275, 0.8745
RGB percentages11.4%, 82.7%, 87.5%
HSLhsl(183.7, 77%, 49.4%)
HSV / HSBhsv(183.7, 87%, 87.5%)
CMYK87%, 5.4%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,954,783
CSS custom property--colour: #1DD3DF;

Brightness & contrast

Relative luminance0.52177WCAG 2.x, 0 is black and 1 is white
Perceived brightness179 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.44:1
Contrast with white1.84:1WCAG normal text: Fail
Contrast with black11.44:1WCAG normal text: AAA
Greyscale equivalent#ADADAD
Inverted#E22C20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C1C9E0no red cones; affects about 1% of men; ΔE 39.5 from the original
Deuteranopia#A9B8E0no green cones; the most common form, about 1% of men; ΔE 40.8 from the original
Tritanopia#00DCD6no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.84:1WCAG large text: Fail
Contrast with black, large text11.44:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 5.7Medium turquoise · ΔE 9.5Turquoise · ΔE 16Light seagreen · ΔE 16.4Aqua · ΔE 18Cyan · ΔE 18
Nearest named CSS colourDark turquoise (#00CED1)ΔE 5.69, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF291D
Analogous#1DDF8A, #1D72DF
Triadic#DF1DD3, #D3DF1D
Split complementary#DF1D72, #DF8A1D
Tetradic#8A1DDF, #DF291D, #72DF1D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFF6F9
Lighter +30%#A2EEF3
Lighter +20%#75E6ED
Lighter +10%#48DDE7
Darker −10%#17A8B2
Darker −20%#117E85
Darker −30%#0B5358
Darker −40%#06282A
More saturated +25%#00ECFC
Less saturated −25%#3DB7C0

Channel breakdown

R29
G211
B223
Red29 (11.4%)
Green211 (82.7%)
Blue223 (87.5%)
Hue183.71°
Saturation (HSL)76.98%
Lightness49.41%
Dominant channelBlue
Hex per channelR 1D · G D3 · B DF

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Every value on this page was computed from “1dd3df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.