Recognised as Colour

#284A45

#284A45
Cyan
Dark
Nearest: Dark slate grey

#284A45 is a cyan with RGB values 40, 74, 69 and HSL 171°, 30%, 22%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#284A45#284A45

HEX#284A45

RGBrgb(40, 74, 69)

RGB (0–1)0.1569, 0.2902, 0.2706

RGB percentages15.7%, 29%, 27.1%

HSLhsl(171.2, 29.8%, 22.4%)

HSV / HSBhsv(171.2, 45.9%, 29%)

CMYK45.9%, 0%, 6.8%, 71%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,640,453

CSS custom property--colour: #284A45;

Brightness & contrast

Relative luminance0.05778WCAG 2.x, 0 is black and 1 is white

Perceived brightness65.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.74:1

Contrast with white9.74:1WCAG normal text: AAA

Contrast with black2.16:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#D7B5BA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#474745no red cones; affects about 1% of men; ΔE 13.6 from the original

Deuteranopia#414245no green cones; the most common form, about 1% of men; ΔE 14.1 from the original

Tritanopia#1B4B48no blue cones; rare, and affects men and women equally; ΔE 3.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.74:1WCAG large text: AAA

Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 4.3 Dim grey · ΔE 20.8 Teal · ΔE 25.7 Gray · ΔE 28.3 Slate grey · ΔE 28.4 Dark cyan · ΔE 29.9

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 4.26, a close match

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4A282D

Analogous#284A34, #283E4A

Triadic#45284A, #4A4528

Split complementary#4A283E, #4A3428

Tetradic#34284A, #4A282D, #3E4A28

Tints, shades & saturation

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

Lighter +40%#82BCB3

Lighter +30%#61AA9F

Lighter +20%#4C8C83

Lighter +10%#3A6B64

Darker −10%#162926

Darker −20%#040807

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1A584F

Less saturated −25%#363C3B

Channel breakdown

R40

G74

B69

Red40 (15.7%)

Green74 (29%)

Blue69 (27.1%)

Hue171.18°

Saturation (HSL)29.82%

Lightness22.35%

Dominant channelGreen

Hex per channelR 28 · G 4A · B 45

Keep nerding

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

#284A45

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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