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Recognised as Colour

#66C2FD

  • #66C2FD
  • Blue
  • Dark
  • Nearest: Deep skyblue

#66C2FD is a blue with RGB values 102, 194, 253 and HSL 203°, 97%, 70%. It is a dark colour, so black text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#66C2FD#66C2FD
HEX#66C2FD
RGBrgb(102, 194, 253)
RGB (0–1)0.4, 0.7608, 0.9922
RGB percentages40%, 76.1%, 99.2%
HSLhsl(203.4, 97.4%, 69.6%)
HSV / HSBhsv(203.4, 59.7%, 99.2%)
CMYK59.7%, 23.3%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,734,589
CSS custom property--colour: #66C2FD;

Brightness & contrast

Relative luminance0.485WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.7:1
Contrast with white1.96:1WCAG normal text: Fail
Contrast with black10.7:1WCAG normal text: AAA
Greyscale equivalent#B3B3B3
Inverted#993D02

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A7C2FFno red cones; affects about 1% of men; ΔE 16.5 from the original
Deuteranopia#92B2FCno green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#00D1D6no blue cones; rare, and affects men and women equally; ΔE 37.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.96:1WCAG large text: Fail
Contrast with black, large text10.7:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 9.2Light skyblue · ΔE 9.9Sky blue · ΔE 17.1Steel blue · ΔE 24.1Light steelblue · ΔE 24.2Cornflower blue · ΔE 26.7
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 9.24, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDA166
Analogous#66FDED, #6676FD
Triadic#FD66C2, #C2FD66
Split complementary#FD6676, #FDED66
Tetradic#ED66FD, #FDA166, #76FD66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFEFF
Lighter +20%#CBEAFE
Lighter +10%#98D6FE
Darker −10%#34AEFC
Darker −20%#0399FA
Darker −30%#037BC7
Darker −40%#025C95
More saturated +25%#64C2FF
Less saturated −25%#79BEEA

Channel breakdown

R102
G194
B253
Red102 (40%)
Green194 (76.1%)
Blue253 (99.2%)
Hue203.44°
Saturation (HSL)97.42%
Lightness69.61%
Dominant channelBlue
Hex per channelR 66 · G C2 · B FD

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Every value on this page was computed from “66c2fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.