Colour

#40645B

#40645B
Cyan
Dark
Nearest: Dark slate grey

#40645B is a cyan with RGB values 64, 100, 91 and HSL 165°, 22%, 32%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#40645B#40645B

HEX#40645B

RGBrgb(64, 100, 91)

RGB (0–1)0.251, 0.3922, 0.3569

RGB percentages25.1%, 39.2%, 35.7%

HSLhsl(165, 22%, 32.2%)

HSV / HSBhsv(165, 36%, 39.2%)

CMYK36%, 0%, 9%, 60.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,219,995

CSS custom property--colour: #40645B;

Brightness & contrast

Relative luminance0.1096WCAG 2.x, 0 is black and 1 is white

Perceived brightness89.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.58:1

Contrast with white6.58:1WCAG normal text: AA

Contrast with black3.19:1WCAG normal text: Fail

Greyscale equivalent#5C5C5C

Inverted#BF9BA4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#61605Bno red cones; affects about 1% of men; ΔE 14.7 from the original

Deuteranopia#5B5B5Cno green cones; the most common form, about 1% of men; ΔE 15.5 from the original

Tritanopia#356561no blue cones; rare, and affects men and women equally; ΔE 4.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.58:1WCAG large text: AAA

Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 10.1 Dim grey · ΔE 16 Teal · ΔE 18.8 Gray · ΔE 20.7 Slate grey · ΔE 21.9 Dark cyan · ΔE 22.4

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.12, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#644049

Analogous#406449, #405B64

Triadic#5B4064, #645B40

Split complementary#64405B, #644940

Tetradic#494064, #644049, #5B6440

Tints, shades & saturation

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

Lighter +40%#A8C8C0

Lighter +30%#89B4A9

Lighter +20%#6AA092

Lighter +10%#548377

Darker −10%#2C453F

Darker −20%#182622

Darker −30%#040706

Darker −40%#000000

More saturated +25%#2B7965

Less saturated −25%#525252

Channel breakdown

R64

G100

B91

Red64 (25.1%)

Green100 (39.2%)

Blue91 (35.7%)

Hue165°

Saturation (HSL)21.95%

Lightness32.16%

Dominant channelGreen

Hex per channelR 40 · G 64 · B 5B

Keep nerding

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

#40645B

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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