Colour

#228B58

#228B58
Cyan
Dark
Nearest: Sea green

#228B58 is a cyan with RGB values 34, 139, 88 and HSL 151°, 61%, 34%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#228B58#228B58

HEX#228B58

RGBrgb(34, 139, 88)

RGB (0–1)0.1333, 0.5451, 0.3451

RGB percentages13.3%, 54.5%, 34.5%

HSLhsl(150.9, 60.7%, 33.9%)

HSV / HSBhsv(150.9, 75.5%, 54.5%)

CMYK75.5%, 0%, 36.7%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,263,896

CSS custom property--colour: #228B58;

Brightness & contrast

Relative luminance0.1951WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.9:1

Contrast with white4.28:1WCAG normal text: Fail

Contrast with black4.9:1WCAG normal text: AA

Greyscale equivalent#717171

Inverted#DD74A7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8A8055no red cones; affects about 1% of men; ΔE 39.1 from the original

Deuteranopia#7D765Bno green cones; the most common form, about 1% of men; ΔE 39.8 from the original

Tritanopia#008A7Eno blue cones; rare, and affects men and women equally; ΔE 22.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text4.28:1WCAG large text: AA

Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Sea green · ΔE 2.1 Medium seagreen · ΔE 16.3 Medium aquamarine · ΔE 26.9 Dark olivegreen · ΔE 27.1 Forest green · ΔE 27.1 Dark green · ΔE 27.4

Nearest named CSS colourSea green (#2E8B57)ΔE 2.13, below the just-noticeable difference

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8B2255

Analogous#228B24, #22898B

Triadic#58228B, #8B5822

Split complementary#8B2289, #8B2422

Tetradic#24228B, #8B2255, #898B22

Tints, shades & saturation

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

Lighter +40%#94E5BE

Lighter +30%#6BDBA5

Lighter +20%#42D18C

Lighter +10%#2CB472

Darker −10%#18623E

Darker −20%#0E3924

Darker −30%#04100A

Darker −40%#000000

More saturated +25%#0CA159

Less saturated −25%#387557

Channel breakdown

R34

G139

B88

Red34 (13.3%)

Green139 (54.5%)

Blue88 (34.5%)

Hue150.86°

Saturation (HSL)60.69%

Lightness33.92%

Dominant channelGreen

Hex per channelR 22 · G 8B · B 58

Keep nerding

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

#228B58

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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