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Recognised as Colour

#31AAD2

  • #31AAD2
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#31AAD2 is a cyan with RGB values 49, 170, 210 and HSL 195°, 64%, 51%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#31AAD2#31AAD2
HEX#31AAD2
RGBrgb(49, 170, 210)
RGB (0–1)0.1922, 0.6667, 0.8235
RGB percentages19.2%, 66.7%, 82.4%
HSLhsl(194.9, 64.1%, 50.8%)
HSV / HSBhsv(194.9, 76.7%, 82.4%)
CMYK76.7%, 19%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,254,994
CSS custom property--colour: #31AAD2;

Brightness & contrast

Relative luminance0.34056WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.81:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.81:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#CE552D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#94A6D4no red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#7E97D2no green cones; the most common form, about 1% of men; ΔE 25.8 from the original
Tritanopia#00B6B7no blue cones; rare, and affects men and women equally; ΔE 25.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.81:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 15Light skyblue · ΔE 17.1Sky blue · ΔE 17.1Steel blue · ΔE 19.9Cadetblue · ΔE 22.6Light steelblue · ΔE 26.8
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 15.01, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D25931
Analogous#31D2A9, #315AD2
Triadic#D231AA, #AAD231
Split complementary#D2315A, #D2A931
Tetradic#A931D2, #D25931, #5AD231

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8EFF7
Lighter +30%#AFDEED
Lighter +20%#85CDE4
Lighter +10%#5BBBDB
Darker −10%#258AAB
Darker −20%#1C6881
Darker −30%#134657
Darker −40%#0A242D
More saturated +25%#12BAF1
Less saturated −25%#509AB3

Channel breakdown

R49
G170
B210
Red49 (19.2%)
Green170 (66.7%)
Blue210 (82.4%)
Hue194.91°
Saturation (HSL)64.14%
Lightness50.78%
Dominant channelBlue
Hex per channelR 31 · G AA · B D2

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Every value on this page was computed from “31aad2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.