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Recognised as Colour

#EFFCFF

  • #EFFCFF
  • Cyan
  • Light
  • Nearest: Azure

#EFFCFF is a cyan with RGB values 239, 252, 255 and HSL 191°, 100%, 97%. It is a light colour, so black text on it reaches 20:1 contrast (AAA for normal text). The nearest named colour is Azure.

Colour values

#EFFCFF#EFFCFF
HEX#EFFCFF
RGBrgb(239, 252, 255)
RGB (0–1)0.9373, 0.9882, 1
RGB percentages93.7%, 98.8%, 100%
HSLhsl(191.2, 100%, 96.9%)
HSV / HSBhsv(191.2, 6.3%, 100%)
CMYK6.3%, 1.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,727,871
CSS custom property--colour: #EFFCFF;

Brightness & contrast

Relative luminance0.95192WCAG 2.x, 0 is black and 1 is white
Perceived brightness248.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 20.04:1
Contrast with white1.05:1WCAG normal text: Fail
Contrast with black20.04:1WCAG normal text: AAA
Greyscale equivalent#F9F9F9
Inverted#100300

Colour vision & accessibility

Protanopia#F9FBFFno red cones; affects about 1% of men; ΔE 3.9 from the original
Deuteranopia#F7F9FFno green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#EBFDFDno blue cones; rare, and affects men and women equally; ΔE 2.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.05:1WCAG large text: Fail
Contrast with black, large text20.04:1WCAG large text: AAA

Named colours

Nearest named CSS colourAzure (#F0FFFF)ΔE 1.89, below the just-noticeable difference
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#FFF2EF
Analogous#EFFFFA, #EFF4FF
Triadic#FFEFFC, #FCFFEF
Split complementary#FFEFF4, #FFFAEF
Tetradic#FAEFFF, #FFF2EF, #F4FFEF

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FFFFFF
Lighter +10%#FFFFFF
Darker −10%#BCF2FF
Darker −20%#89E9FF
Darker −30%#56DFFF
Darker −40%#23D6FF
More saturated +25%#EFFCFF
Less saturated −25%#F1FBFD

Channel breakdown

R239
G252
B255
Red239 (93.7%)
Green252 (98.8%)
Blue255 (100%)
Hue191.25°
Saturation (HSL)100%
Lightness96.86%
Dominant channelBlue
Hex per channelR EF · G FC · B FF

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