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Recognised as Colour

#A4DDDA

  • #A4DDDA
  • Cyan
  • Light
  • Nearest: Powder blue

#A4DDDA is a cyan with RGB values 164, 221, 218 and HSL 177°, 46%, 75%. It is a light colour, so black text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Powder blue.

Colour values

#A4DDDA#A4DDDA
HEX#A4DDDA
RGBrgb(164, 221, 218)
RGB (0–1)0.6431, 0.8667, 0.8549
RGB percentages64.3%, 86.7%, 85.5%
HSLhsl(176.8, 45.6%, 75.5%)
HSV / HSBhsv(176.8, 25.8%, 86.7%)
CMYK25.8%, 0%, 1.4%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,804,698
CSS custom property--colour: #A4DDDA;

Brightness & contrast

Relative luminance0.64667WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.93:1
Contrast with white1.51:1WCAG normal text: Fail
Contrast with black13.93:1WCAG normal text: AAA
Greyscale equivalent#D1D1D1
Inverted#5B2225

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D6D7DAno red cones; affects about 1% of men; ΔE 19.2 from the original
Deuteranopia#CBCFDBno green cones; the most common form, about 1% of men; ΔE 19.8 from the original
Tritanopia#91E0DCno blue cones; rare, and affects men and women equally; ΔE 6.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.51:1WCAG large text: Fail
Contrast with black, large text13.93:1WCAG large text: AAA

Named colours

Powder blue · ΔE 6.1Pale turquoise · ΔE 6.1Light blue · ΔE 10.5Light cyan · ΔE 16.2Sky blue · ΔE 18Light grey · ΔE 19.2
Nearest named CSS colourPowder blue (#B0E0E6)ΔE 6.13, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDA4A7
Analogous#A4DDBE, #A4C3DD
Triadic#DAA4DD, #DDDAA4
Split complementary#DDA4C3, #DDBEA4
Tetradic#BEA4DD, #DDA4A7, #C3DDA4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EEF9F8
Lighter +10%#C9EBE9
Darker −10%#7FCFCB
Darker −20%#5AC1BC
Darker −30%#3FA9A3
Darker −40%#31847F
More saturated +25%#94EDE8
Less saturated −25%#B4CDCC

Channel breakdown

R164
G221
B218
Red164 (64.3%)
Green221 (86.7%)
Blue218 (85.5%)
Hue176.84°
Saturation (HSL)45.6%
Lightness75.49%
Dominant channelGreen
Hex per channelR A4 · G DD · B DA

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Every value on this page was computed from “a4ddda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.