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Colour

#51A786

  • #51A786
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#51A786 is a cyan with RGB values 81, 167, 134 and HSL 157°, 35%, 49%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#51A786#51A786
HEX#51A786
RGBrgb(81, 167, 134)
RGB (0–1)0.3176, 0.6549, 0.5255
RGB percentages31.8%, 65.5%, 52.5%
HSLhsl(157, 34.7%, 48.6%)
HSV / HSBhsv(157, 51.5%, 65.5%)
CMYK51.5%, 0%, 19.8%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,351,302
CSS custom property--colour: #51A786;

Brightness & contrast

Relative luminance0.31108WCAG 2.x, 0 is black and 1 is white
Perceived brightness142.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.22:1
Contrast with white2.91:1WCAG normal text: Fail
Contrast with black7.22:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#AE5879

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A49D84no red cones; affects about 1% of men; ΔE 32.8 from the original
Deuteranopia#979488no green cones; the most common form, about 1% of men; ΔE 33.1 from the original
Tritanopia#31A79Eno blue cones; rare, and affects men and women equally; ΔE 14 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.91:1WCAG large text: Fail
Contrast with black, large text7.22:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 13.8Light seagreen · ΔE 16.2Sea green · ΔE 16.5Dark seagreen · ΔE 16.5Medium seagreen · ΔE 20.8Dark cyan · ΔE 21.2
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 13.8, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A75172
Analogous#51A75B, #519DA7
Triadic#8651A7, #A78651
Split complementary#A7519D, #A75B51
Tetradic#5B51A7, #A75172, #9DA751

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8ECE4
Lighter +30%#B6DBCD
Lighter +20%#93CBB5
Lighter +10%#71BA9E
Darker −10%#40856A
Darker −20%#30624F
Darker −30%#1F4033
Darker −40%#0E1E18
More saturated +25%#32C68D
Less saturated −25%#70887F

Channel breakdown

R81
G167
B134
Red81 (31.8%)
Green167 (65.5%)
Blue134 (52.5%)
Hue156.98°
Saturation (HSL)34.68%
Lightness48.63%
Dominant channelGreen
Hex per channelR 51 · G A7 · B 86

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Every value on this page was computed from “51a786” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.