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Recognised as Colour

#81D4EA

  • #81D4EA
  • Cyan
  • Light
  • Nearest: Sky blue

#81D4EA is a cyan with RGB values 129, 212, 234 and HSL 193°, 71%, 71%. It is a light colour, so black text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#81D4EA#81D4EA
HEX#81D4EA
RGBrgb(129, 212, 234)
RGB (0–1)0.5059, 0.8314, 0.9176
RGB percentages50.6%, 83.1%, 91.8%
HSLhsl(192.6, 71.4%, 71.2%)
HSV / HSBhsv(192.6, 44.9%, 91.8%)
CMYK44.9%, 9.4%, 0%, 8.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,508,650
CSS custom property--colour: #81D4EA;

Brightness & contrast

Relative luminance0.57695WCAG 2.x, 0 is black and 1 is white
Perceived brightness193.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.54:1
Contrast with white1.67:1WCAG normal text: Fail
Contrast with black12.54:1WCAG normal text: AAA
Greyscale equivalent#C4C4C4
Inverted#7E2B15

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C5CFEBno red cones; affects about 1% of men; ΔE 22.3 from the original
Deuteranopia#B5C3EAno green cones; the most common form, about 1% of men; ΔE 23.3 from the original
Tritanopia#4FDCDBno blue cones; rare, and affects men and women equally; ΔE 19.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.67:1WCAG large text: Fail
Contrast with black, large text12.54:1WCAG large text: AAA

Named colours

Sky blue · ΔE 5.6Light blue · ΔE 11.8Light skyblue · ΔE 13.2Powder blue · ΔE 13.3Pale turquoise · ΔE 15.5Light steelblue · ΔE 18.8
Nearest named CSS colourSky blue (#87CEEB)ΔE 5.59, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EA9781
Analogous#81EACB, #81A0EA
Triadic#EA81D4, #D4EA81
Split complementary#EA819F, #EACB81
Tetradic#CC81EA, #EA9781, #A0EA81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#D8F2F9
Lighter +10%#ADE3F1
Darker −10%#55C5E3
Darker −20%#2AB6DB
Darker −30%#1E95B4
Darker −40%#177088
More saturated +25%#6FDFFC
Less saturated −25%#93C9D8

Channel breakdown

R129
G212
B234
Red129 (50.6%)
Green212 (83.1%)
Blue234 (91.8%)
Hue192.57°
Saturation (HSL)71.43%
Lightness71.18%
Dominant channelBlue
Hex per channelR 81 · G D4 · B EA

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Every value on this page was computed from “81d4ea” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.