Nerdulator> put something in

Recognised as Colour

#66C3FC

  • #66C3FC
  • Blue
  • Dark
  • Nearest: Light skyblue

#66C3FC is a blue with RGB values 102, 195, 252 and HSL 203°, 96%, 69%. It is a dark colour, so black text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#66C3FC#66C3FC
HEX#66C3FC
RGBrgb(102, 195, 252)
RGB (0–1)0.4, 0.7647, 0.9882
RGB percentages40%, 76.5%, 98.8%
HSLhsl(202.8, 96.2%, 69.4%)
HSV / HSBhsv(202.8, 59.5%, 98.8%)
CMYK59.5%, 22.6%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,734,844
CSS custom property--colour: #66C3FC;

Brightness & contrast

Relative luminance0.48883WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.78:1
Contrast with white1.95:1WCAG normal text: Fail
Contrast with black10.78:1WCAG normal text: AAA
Greyscale equivalent#B3B3B3
Inverted#993C03

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A9C2FFno red cones; affects about 1% of men; ΔE 17.6 from the original
Deuteranopia#94B3FBno green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#00D2D6no blue cones; rare, and affects men and women equally; ΔE 36.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.95:1WCAG large text: Fail
Contrast with black, large text10.78:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 9Deep skyblue · ΔE 9.3Sky blue · ΔE 16Light steelblue · ΔE 23.6Steel blue · ΔE 24.4Light blue · ΔE 26.3
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 9.02, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FC9F66
Analogous#66FCEA, #6678FC
Triadic#FC66C3, #C3FC66
Split complementary#FC6678, #FCEA66
Tetradic#EA66FC, #FC9F66, #78FC66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFEFF
Lighter +20%#CAEAFE
Lighter +10%#98D7FD
Darker −10%#34AFFB
Darker −20%#059BF7
Darker −30%#047CC5
Darker −40%#035C93
More saturated +25%#63C4FF
Less saturated −25%#7ABEE9

Channel breakdown

R102
G195
B252
Red102 (40%)
Green195 (76.5%)
Blue252 (98.8%)
Hue202.8°
Saturation (HSL)96.15%
Lightness69.41%
Dominant channelBlue
Hex per channelR 66 · G C3 · B FC

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “66c3fc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.