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Colour

#99DDDD

  • #99DDDD
  • Cyan
  • Light
  • Nearest: Pale turquoise

#99DDDD is a cyan with RGB values 153, 221, 221 and HSL 180°, 50%, 73%. It is a light colour, so black text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Pale turquoise.

Colour values

#99DDDD#99DDDD
HEX#99DDDD
HEX (short)#9DD
RGBrgb(153, 221, 221)
RGB (0–1)0.6, 0.8667, 0.8667
RGB percentages60%, 86.7%, 86.7%
HSLhsl(180, 50%, 73.3%)
HSV / HSBhsv(180, 30.8%, 86.7%)
CMYK30.8%, 0%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,083,805
CSS custom property--colour: #99DDDD;

Brightness & contrast

Relative luminance0.63706WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.74:1
Contrast with white1.53:1WCAG normal text: Fail
Contrast with black13.74:1WCAG normal text: AAA
Greyscale equivalent#CFCFCF
Inverted#662222

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D4D7DDno red cones; affects about 1% of men; ΔE 21.7 from the original
Deuteranopia#C8CDDEno green cones; the most common form, about 1% of men; ΔE 22.9 from the original
Tritanopia#80E1DDno blue cones; rare, and affects men and women equally; ΔE 8.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.53:1WCAG large text: Fail
Contrast with black, large text13.74:1WCAG large text: AAA

Named colours

Pale turquoise · ΔE 6.4Powder blue · ΔE 7.5Light blue · ΔE 11.3Sky blue · ΔE 16.4Medium turquoise · ΔE 17.7Light cyan · ΔE 18.3
Nearest named CSS colourPale turquoise (#AFEEEE)ΔE 6.45, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9999
Analogous#99DDBB, #99BBDD
Triadic#DD99DD, #DDDD99
Split complementary#DD99BB, #DDBB99
Tetradic#BB99DD, #DD9999, #BBDD99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E6F7F7
Lighter +10%#BFEAEA
Darker −10%#73D0D0
Darker −20%#4DC4C4
Darker −30%#37A6A6
Darker −40%#2A8080
More saturated +25%#88EEEE
Less saturated −25%#AACCCC

Channel breakdown

R153
G221
B221
Red153 (60%)
Green221 (86.7%)
Blue221 (86.7%)
Hue180°
Saturation (HSL)50%
Lightness73.33%
Dominant channelGreen and Blue
Hex per channelR 99 · G DD · B DD

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Every value on this page was computed from “99dddd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.