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Recognised as Colour

#40B51A

  • #40B51A
  • Green
  • Dark
  • Nearest: Limegreen

#40B51A is a green with RGB values 64, 181, 26 and HSL 105°, 75%, 41%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#40B51A#40B51A
HEX#40B51A
RGBrgb(64, 181, 26)
RGB (0–1)0.251, 0.7098, 0.102
RGB percentages25.1%, 71%, 10.2%
HSLhsl(105.3, 74.9%, 40.6%)
HSV / HSBhsv(105.3, 85.6%, 71%)
CMYK64.6%, 0%, 85.6%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,240,666
CSS custom property--colour: #40B51A;

Brightness & contrast

Relative luminance0.34212WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.84:1
Contrast with white2.68:1WCAG normal text: Fail
Contrast with black7.84:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#BF4AE5

Colour vision & accessibility

Protanopia#BAA400no red cones; affects about 1% of men; ΔE 53.4 from the original
Deuteranopia#AC9B30no green cones; the most common form, about 1% of men; ΔE 52.7 from the original
Tritanopia#2EAF9Ano blue cones; rare, and affects men and women equally; ΔE 63.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.68:1WCAG large text: Fail
Contrast with black, large text7.84:1WCAG large text: AAA

Named colours

Nearest named CSS colourLimegreen (#32CD32)ΔE 11.61, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#8F1AB5
Analogous#8DB51A, #1AB542
Triadic#1A40B5, #B51A40
Split complementary#411AB5, #B51A8E
Tetradic#1A8EB5, #8F1AB5, #B5421A

Tints, shades & saturation

Lighter +40%#BBF3A8
Lighter +30%#97EC7C
Lighter +20%#74E64F
Lighter +10%#51DF23
Darker −10%#308814
Darker −20%#205C0D
Darker −30%#112F07
Darker −40%#010300
More saturated +25%#33CF00
Less saturated −25%#4D9B34

Channel breakdown

R64
G181
B26
Red64 (25.1%)
Green181 (71%)
Blue26 (10.2%)
Hue105.29°
Saturation (HSL)74.88%
Lightness40.59%
Dominant channelGreen
Hex per channelR 40 · G B5 · B 1A

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Every value on this page was computed from “40b51a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.