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Recognised as Colour

#28643B

  • #28643B
  • Green
  • Dark
  • Nearest: Sea green

#28643B is a green with RGB values 40, 100, 59 and HSL 139°, 43%, 27%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Sea green.

Colour values

#28643B#28643B
HEX#28643B
RGBrgb(40, 100, 59)
RGB (0–1)0.1569, 0.3922, 0.2314
RGB percentages15.7%, 39.2%, 23.1%
HSLhsl(139, 42.9%, 27.5%)
HSV / HSBhsv(139, 60%, 39.2%)
CMYK60%, 0%, 41%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,647,099
CSS custom property--colour: #28643B;

Brightness & contrast

Relative luminance0.09881WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.06:1
Contrast with white7.06:1WCAG normal text: AAA
Contrast with black2.98:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#D79BC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645C38no red cones; affects about 1% of men; ΔE 27.5 from the original
Deuteranopia#5C563Eno green cones; the most common form, about 1% of men; ΔE 28 from the original
Tritanopia#18625Ano blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.06:1WCAG large text: AAA
Contrast with black, large text2.98:1WCAG large text: Fail

Named colours

Sea green · ΔE 17.3Dark olivegreen · ΔE 17.5Dark green · ΔE 27.9Teal · ΔE 28.1Dark slate grey · ΔE 28.6Dark cyan · ΔE 30.3
Nearest named CSS colourSea green (#2E8B57)ΔE 17.35, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#642851
Analogous#336428, #286459
Triadic#3B2864, #643B28
Split complementary#592864, #642833
Tetradic#283364, #642851, #645928

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88D09F
Lighter +30%#64C181
Lighter +20%#45AD66
Lighter +10%#378850
Darker −10%#194026
Darker −20%#0B1B10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#167635
Less saturated −25%#3A5341

Channel breakdown

R40
G100
B59
Red40 (15.7%)
Green100 (39.2%)
Blue59 (23.1%)
Hue139°
Saturation (HSL)42.86%
Lightness27.45%
Dominant channelGreen
Hex per channelR 28 · G 64 · B 3B

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Every value on this page was computed from “28643b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.