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Recognised as Colour

#1DC9C9

  • #1DC9C9
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#1DC9C9 is a cyan with RGB values 29, 201, 201 and HSL 180°, 75%, 45%. It is a dark colour, so black text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#1DC9C9#1DC9C9
HEX#1DC9C9
RGBrgb(29, 201, 201)
RGB (0–1)0.1137, 0.7882, 0.7882
RGB percentages11.4%, 78.8%, 78.8%
HSLhsl(180, 74.8%, 45.1%)
HSV / HSBhsv(180, 85.6%, 78.8%)
CMYK85.6%, 0%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,952,201
CSS custom property--colour: #1DC9C9;

Brightness & contrast

Relative luminance0.46252WCAG 2.x, 0 is black and 1 is white
Perceived brightness169 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.25:1
Contrast with white2.05:1WCAG normal text: Fail
Contrast with black10.25:1WCAG normal text: AAA
Greyscale equivalent#A4A4A4
Inverted#E23636

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BBBFC9no red cones; affects about 1% of men; ΔE 40.2 from the original
Deuteranopia#A5AECAno green cones; the most common form, about 1% of men; ΔE 42 from the original
Tritanopia#00D0C9no 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 text2.05:1WCAG large text: Fail
Contrast with black, large text10.25:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 2.7Medium turquoise · ΔE 4.8Light seagreen · ΔE 9.6Turquoise · ΔE 11.8Aqua · ΔE 19.8Cyan · ΔE 19.8
Nearest named CSS colourDark turquoise (#00CED1)ΔE 2.71, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C91D1D
Analogous#1DC973, #1D73C9
Triadic#C91DC9, #C9C91D
Split complementary#C91D73, #C9731D
Tetradic#731DC9, #C91D1D, #73C91D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BDF5F5
Lighter +30%#90EFEF
Lighter +20%#63E9E9
Lighter +10%#37E2E2
Darker −10%#179C9C
Darker −20%#107070
Darker −30%#0A4343
Darker −40%#031717
More saturated +25%#00E6E6
Less saturated −25%#3AACAC

Channel breakdown

R29
G201
B201
Red29 (11.4%)
Green201 (78.8%)
Blue201 (78.8%)
Hue180°
Saturation (HSL)74.78%
Lightness45.1%
Dominant channelGreen and Blue
Hex per channelR 1D · G C9 · B C9

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Every value on this page was computed from “1dc9c9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.