Colour

#818DCC

#818DCC
Blue
Dark
Nearest: Cornflower blue

#818DCC is a blue with RGB values 129, 141, 204 and HSL 230°, 42%, 65%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#818DCC#818DCC

HEX#818DCC

RGBrgb(129, 141, 204)

RGB (0–1)0.5059, 0.5529, 0.8

RGB percentages50.6%, 55.3%, 80%

HSLhsl(230.4, 42.4%, 65.3%)

HSV / HSBhsv(230.4, 36.8%, 80%)

CMYK36.8%, 30.9%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,490,444

CSS custom property--colour: #818DCC;

Brightness & contrast

Relative luminance0.28077WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.62:1

Contrast with white3.17:1WCAG normal text: Fail

Contrast with black6.62:1WCAG normal text: AA

Greyscale equivalent#8F8F8F

Inverted#7E7233

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7994CFno red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#738ECAno green cones; the most common form, about 1% of men; ΔE 5 from the original

Tritanopia#6B99A3no blue cones; rare, and affects men and women equally; ΔE 33.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.17:1WCAG large text: AA

Contrast with black, large text6.62:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 15.6 Steel blue · ΔE 17 Light slate grey · ΔE 26.7 Slate grey · ΔE 27.7 Plum · ΔE 28 Light steelblue · ΔE 29

Nearest named CSS colourCornflower blue (#6495ED)ΔE 15.62, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CCC081

Analogous#81B3CC, #9B81CC

Triadic#CC818D, #8DCC81

Split complementary#CC9A81, #B3CC81

Tetradic#CC81B3, #CCC081, #81CC9A

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#EEF0F8

Lighter +20%#CACFE9

Lighter +10%#A5AEDB

Darker −10%#5D6CBD

Darker −20%#4352A4

Darker −30%#344080

Darker −40%#252E5C

More saturated +25%#6B7EE2

Less saturated −25%#979CB6

Channel breakdown

R129

G141

B204

Red129 (50.6%)

Green141 (55.3%)

Blue204 (80%)

Hue230.4°

Saturation (HSL)42.37%

Lightness65.29%

Dominant channelBlue

Hex per channelR 81 · G 8D · B CC

Keep nerding

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

#818DCC

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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