Nerdulator> put something in

Recognised as Colour

#A1D9E9

  • #A1D9E9
  • Cyan
  • Light
  • Nearest: Light blue

#A1D9E9 is a cyan with RGB values 161, 217, 233 and HSL 193°, 62%, 77%. It is a light colour, so black text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Light blue.

Colour values

#A1D9E9#A1D9E9
HEX#A1D9E9
RGBrgb(161, 217, 233)
RGB (0–1)0.6314, 0.851, 0.9137
RGB percentages63.1%, 85.1%, 91.4%
HSLhsl(193.3, 62.1%, 77.3%)
HSV / HSBhsv(193.3, 30.9%, 91.4%)
CMYK30.9%, 6.9%, 0%, 8.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,607,081
CSS custom property--colour: #A1D9E9;

Brightness & contrast

Relative luminance0.63086WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.62:1
Contrast with white1.54:1WCAG normal text: Fail
Contrast with black13.62:1WCAG normal text: AAA
Greyscale equivalent#CECECE
Inverted#5E2616

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CED5EAno red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#C2CCE9no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#89DFDEno blue cones; rare, and affects men and women equally; ΔE 13.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.54:1WCAG large text: Fail
Contrast with black, large text13.62:1WCAG large text: AAA

Named colours

Light blue · ΔE 3.9Powder blue · ΔE 6.2Sky blue · ΔE 8.8Pale turquoise · ΔE 11.2Light steelblue · ΔE 13.9Light skyblue · ΔE 15.7
Nearest named CSS colourLight blue (#ADD8E6)ΔE 3.92, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E9B1A1
Analogous#A1E9D5, #A1B5E9
Triadic#E9A1D9, #D9E9A1
Split complementary#E9A1B5, #E9D5A1
Tetradic#D5A1E9, #E9B1A1, #B5E9A1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F4FAFC
Lighter +10%#CAEAF3
Darker −10%#78C8DF
Darker −20%#4EB8D6
Darker −30%#2EA2C3
Darker −40%#24809A
More saturated +25%#92E1F7
Less saturated −25%#B0D1DB

Channel breakdown

R161
G217
B233
Red161 (63.1%)
Green217 (85.1%)
Blue233 (91.4%)
Hue193.33°
Saturation (HSL)62.07%
Lightness77.25%
Dominant channelBlue
Hex per channelR A1 · G D9 · B E9

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 “a1d9e9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.