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Recognised as Colour

#A4EFFB

  • #A4EFFB
  • Cyan
  • Light
  • Nearest: Pale turquoise

#A4EFFB is a cyan with RGB values 164, 239, 251 and HSL 188°, 92%, 81%. It is a light colour, so black text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Pale turquoise.

Colour values

#A4EFFB#A4EFFB
HEX#A4EFFB
RGBrgb(164, 239, 251)
RGB (0–1)0.6431, 0.9373, 0.9843
RGB percentages64.3%, 93.7%, 98.4%
HSLhsl(188.3, 91.6%, 81.4%)
HSV / HSBhsv(188.3, 34.7%, 98.4%)
CMYK34.7%, 4.8%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,809,339
CSS custom property--colour: #A4EFFB;

Brightness & contrast

Relative luminance0.76591WCAG 2.x, 0 is black and 1 is white
Perceived brightness220.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.32:1
Contrast with white1.29:1WCAG normal text: Fail
Contrast with black16.32:1WCAG normal text: AAA
Greyscale equivalent#E0E0E0
Inverted#5B1004

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E3E9FCno red cones; affects about 1% of men; ΔE 22.1 from the original
Deuteranopia#D4DEFBno green cones; the most common form, about 1% of men; ΔE 22.7 from the original
Tritanopia#83F5F2no blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.29:1WCAG large text: Fail
Contrast with black, large text16.32:1WCAG large text: AAA

Named colours

Pale turquoise · ΔE 6.8Powder blue · ΔE 8.9Light blue · ΔE 11.3Sky blue · ΔE 14.6Light cyan · ΔE 16.1Light skyblue · ΔE 20.8
Nearest named CSS colourPale turquoise (#AFEEEE)ΔE 6.76, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FBB0A4
Analogous#A4FBDB, #A4C4FB
Triadic#FBA4EF, #EFFBA4
Split complementary#FBA4C4, #FBDBA4
Tetradic#DBA4FB, #FBB0A4, #C4FBA4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FFFFFF
Lighter +10%#D5F8FD
Darker −10%#73E6F9
Darker −20%#42DEF7
Darker −30%#11D5F5
Darker −40%#09AFCA
More saturated +25%#A0F2FF
Less saturated −25%#B0E6EF

Channel breakdown

R164
G239
B251
Red164 (64.3%)
Green239 (93.7%)
Blue251 (98.4%)
Hue188.28°
Saturation (HSL)91.58%
Lightness81.37%
Dominant channelBlue
Hex per channelR A4 · G EF · B FB

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Every value on this page was computed from “a4effb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.