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Recognised as Colour

#51A464

  • #51A464
  • Green
  • Dark
  • Nearest: Medium seagreen

#51A464 is a green with RGB values 81, 164, 100 and HSL 134°, 34%, 48%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Medium seagreen.

Colour values

#51A464#51A464
HEX#51A464
RGBrgb(81, 164, 100)
RGB (0–1)0.3176, 0.6431, 0.3922
RGB percentages31.8%, 64.3%, 39.2%
HSLhsl(133.7, 33.9%, 48%)
HSV / HSBhsv(133.7, 50.6%, 64.3%)
CMYK50.6%, 0%, 39%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,350,500
CSS custom property--colour: #51A464;

Brightness & contrast

Relative luminance0.2922WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.84:1
Contrast with white3.07:1WCAG normal text: Fail
Contrast with black6.84:1WCAG normal text: AA
Greyscale equivalent#8E8E8E
Inverted#AE5B9B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A59860no red cones; affects about 1% of men; ΔE 36.6 from the original
Deuteranopia#999068no green cones; the most common form, about 1% of men; ΔE 36.7 from the original
Tritanopia#40A194no blue cones; rare, and affects men and women equally; ΔE 28.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.07:1WCAG large text: AA
Contrast with black, large text6.84:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 9.7Sea green · ΔE 11Dark seagreen · ΔE 20.8Medium aquamarine · ΔE 22.8Forest green · ΔE 24.1Olivedrab · ΔE 27.3
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 9.73, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A45191
Analogous#68A451, #51A48D
Triadic#6451A4, #A46451
Split complementary#8E51A4, #A45167
Tetradic#5168A4, #A45191, #A48E51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6EBDB
Lighter +30%#B4DABD
Lighter +20%#92C99F
Lighter +10%#70B880
Darker −10%#40824F
Darker −20%#2F603A
Darker −30%#1E3E26
Darker −40%#0E1B11
More saturated +25%#32C353
Less saturated −25%#708575

Channel breakdown

R81
G164
B100
Red81 (31.8%)
Green164 (64.3%)
Blue100 (39.2%)
Hue133.73°
Saturation (HSL)33.88%
Lightness48.04%
Dominant channelGreen
Hex per channelR 51 · G A4 · B 64

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Every value on this page was computed from “51a464” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.