Colour

#818DAC

#818DAC
Blue
Dark
Nearest: Light slate grey

#818DAC is a blue with RGB values 129, 141, 172 and HSL 223°, 21%, 59%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#818DAC#818DAC

HEX#818DAC

RGBrgb(129, 141, 172)

RGB (0–1)0.5059, 0.5529, 0.6745

RGB percentages50.6%, 55.3%, 67.5%

HSLhsl(223.3, 20.6%, 59%)

HSV / HSBhsv(223.3, 25%, 67.5%)

CMYK25%, 18%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,490,412

CSS custom property--colour: #818DAC;

Brightness & contrast

Relative luminance0.26695WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.34:1

Contrast with white3.31:1WCAG normal text: Fail

Contrast with black6.34:1WCAG normal text: AA

Greyscale equivalent#8D8D8D

Inverted#7E7253

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#848FADno red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#808BABno green cones; the most common form, about 1% of men; ΔE 1 from the original

Tritanopia#769397no blue cones; rare, and affects men and women equally; ΔE 17.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.31:1WCAG large text: AA

Contrast with black, large text6.34:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 8.7 Slate grey · ΔE 10.5 Steel blue · ΔE 17.1 Gray · ΔE 18.7 Light steelblue · ΔE 20.3 Dark grey · ΔE 20.8

Nearest named CSS colourLight slate grey (#778899)ΔE 8.74, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#ACA081

Analogous#81A3AC, #8A81AC

Triadic#AC818D, #8DAC81

Split complementary#AC8B81, #A3AC81

Tetradic#AC81A3, #ACA081, #81AC8B

Tints, shades & saturation

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

Lighter +40%#FCFCFD

Lighter +30%#DDE0E9

Lighter +20%#BEC5D5

Lighter +10%#A0A9C0

Darker −10%#637297

Darker −20%#4F5A78

Darker −30%#3B4359

Darker −40%#272C3A

More saturated +25%#6781C6

Less saturated −25%#979797

Channel breakdown

R129

G141

B172

Red129 (50.6%)

Green141 (55.3%)

Blue172 (67.5%)

Hue223.26°

Saturation (HSL)20.57%

Lightness59.02%

Dominant channelBlue

Hex per channelR 81 · G 8D · B AC

Keep nerding

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

#818DAC

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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