Colour

#81B2EB

#81B2EB
Blue
Dark
Nearest: Light skyblue

#81B2EB is a blue with RGB values 129, 178, 235 and HSL 212°, 73%, 71%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#81B2EB#81B2EB

HEX#81B2EB

RGBrgb(129, 178, 235)

RGB (0–1)0.5059, 0.698, 0.9216

RGB percentages50.6%, 69.8%, 92.2%

HSLhsl(212.3, 72.6%, 71.4%)

HSV / HSBhsv(212.3, 45.1%, 92.2%)

CMYK45.1%, 24.3%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,499,947

CSS custom property--colour: #81B2EB;

Brightness & contrast

Relative luminance0.42506WCAG 2.x, 0 is black and 1 is white

Perceived brightness172.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 9.5:1

Contrast with white2.21:1WCAG normal text: Fail

Contrast with black9.5:1WCAG normal text: AAA

Greyscale equivalent#ACACAC

Inverted#7E4D14

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#9CB4EEno red cones; affects about 1% of men; ΔE 7.4 from the original

Deuteranopia#8FAAEAno green cones; the most common form, about 1% of men; ΔE 8 from the original

Tritanopia#56BFC5no blue cones; rare, and affects men and women equally; ΔE 34.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.21:1WCAG large text: Fail

Contrast with black, large text9.5:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 13.7 Deep skyblue · ΔE 18.7 Steel blue · ΔE 19 Light steelblue · ΔE 19.7 Sky blue · ΔE 19.9 Cornflower blue · ΔE 21.2

Nearest named CSS colourLight skyblue (#87CEFA)ΔE 13.7, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#EBBA81

Analogous#81E7EB, #8581EB

Triadic#EB81B2, #B2EB81

Split complementary#EB8581, #E7EB81

Tetradic#EB81E7, #EBBA81, #81EB85

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#D9E8F9

Lighter +10%#ADCDF2

Darker −10%#5597E4

Darker −20%#297CDD

Darker −30%#1D64B6

Darker −40%#164C8A

More saturated +25%#6FB1FD

Less saturated −25%#93B3D9

Channel breakdown

R129

G178

B235

Red129 (50.6%)

Green178 (69.8%)

Blue235 (92.2%)

Hue212.26°

Saturation (HSL)72.6%

Lightness71.37%

Dominant channelBlue

Hex per channelR 81 · G B2 · B EB

Keep nerding

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

#81B2EB

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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