Nerdulator> put something in

Colour

#66F9FD

  • #66F9FD
  • Cyan
  • Light
  • Nearest: Aqua

#66F9FD is a cyan with RGB values 102, 249, 253 and HSL 182°, 97%, 70%. It is a light colour, so black text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#66F9FD#66F9FD
HEX#66F9FD
RGBrgb(102, 249, 253)
RGB (0–1)0.4, 0.9765, 0.9922
RGB percentages40%, 97.6%, 99.2%
HSLhsl(181.6, 97.4%, 69.6%)
HSV / HSBhsv(181.6, 59.7%, 99.2%)
CMYK59.7%, 1.6%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,748,669
CSS custom property--colour: #66F9FD;

Brightness & contrast

Relative luminance0.77668WCAG 2.x, 0 is black and 1 is white
Perceived brightness216.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.53:1
Contrast with white1.27:1WCAG normal text: Fail
Contrast with black16.53:1WCAG normal text: AAA
Greyscale equivalent#DADADA
Inverted#990602

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E9EEFEno red cones; affects about 1% of men; ΔE 39.6 from the original
Deuteranopia#D1DDFEno green cones; the most common form, about 1% of men; ΔE 40.6 from the original
Tritanopia#00FFFAno blue cones; rare, and affects men and women equally; ΔE 11.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.27:1WCAG large text: Fail
Contrast with black, large text16.53:1WCAG large text: AAA

Named colours

Aqua · ΔE 10.4Cyan · ΔE 10.4Medium turquoise · ΔE 14.7Turquoise · ΔE 14.9Dark turquoise · ΔE 15.5Pale turquoise · ΔE 19.5
Nearest named CSS colourAqua (#00FFFF)ΔE 10.35, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD6A66
Analogous#66FDB6, #66AEFD
Triadic#FD66F9, #F9FD66
Split complementary#FD66AE, #FDB666
Tetradic#B566FD, #FD6A66, #ADFD66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFFFF
Lighter +20%#CBFDFE
Lighter +10%#98FBFE
Darker −10%#34F7FC
Darker −20%#03F3FA
Darker −30%#03C2C7
Darker −40%#029195
More saturated +25%#64FBFF
Less saturated −25%#79E7EA

Channel breakdown

R102
G249
B253
Red102 (40%)
Green249 (97.6%)
Blue253 (99.2%)
Hue181.59°
Saturation (HSL)97.42%
Lightness69.61%
Dominant channelBlue
Hex per channelR 66 · G F9 · B FD

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 “66f9fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.