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Recognised as Colour

#308D57

  • #308D57
  • Green
  • Dark
  • Nearest: Sea green

#308D57 is a green with RGB values 48, 141, 87 and HSL 145°, 49%, 37%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#308D57#308D57
HEX#308D57
RGBrgb(48, 141, 87)
RGB (0–1)0.1882, 0.5529, 0.3412
RGB percentages18.8%, 55.3%, 34.1%
HSLhsl(145.2, 49.2%, 37.1%)
HSV / HSBhsv(145.2, 66%, 55.3%)
CMYK66%, 0%, 38.3%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,181,911
CSS custom property--colour: #308D57;

Brightness & contrast

Relative luminance0.20366WCAG 2.x, 0 is black and 1 is white
Perceived brightness115 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.07:1
Contrast with white4.14:1WCAG normal text: Fail
Contrast with black5.07:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#CF72A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8D8253no red cones; affects about 1% of men; ΔE 37.7 from the original
Deuteranopia#81795Bno green cones; the most common form, about 1% of men; ΔE 38.3 from the original
Tritanopia#008B7Fno blue cones; rare, and affects men and women equally; ΔE 24.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.14:1WCAG large text: AA
Contrast with black, large text5.07:1WCAG large text: AAA

Named colours

Sea green · ΔE 1.3Medium seagreen · ΔE 15.7Dark olivegreen · ΔE 25.4Forest green · ΔE 25.8Dark seagreen · ΔE 25.9Dark green · ΔE 26.5
Nearest named CSS colourSea green (#2E8B57)ΔE 1.28, below the just-noticeable difference
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D3066
Analogous#388D30, #308D85
Triadic#57308D, #8D5730
Split complementary#85308D, #8D3038
Tetradic#30388D, #8D3066, #8D8530

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A8E1C0
Lighter +30%#82D4A4
Lighter +20%#5CC789
Lighter +10%#3DB36E
Darker −10%#236740
Darker −20%#164128
Darker −30%#091B11
Darker −40%#000000
More saturated +25%#18A553
Less saturated −25%#48755B

Channel breakdown

R48
G141
B87
Red48 (18.8%)
Green141 (55.3%)
Blue87 (34.1%)
Hue145.16°
Saturation (HSL)49.21%
Lightness37.06%
Dominant channelGreen
Hex per channelR 30 · G 8D · B 57

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Every value on this page was computed from “308d57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.