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Recognised as Colour

#51D2BD

  • #51D2BD
  • Cyan
  • Light
  • Nearest: Turquoise

#51D2BD is a cyan with RGB values 81, 210, 189 and HSL 170°, 59%, 57%. It is a light colour, so black text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#51D2BD#51D2BD
HEX#51D2BD
RGBrgb(81, 210, 189)
RGB (0–1)0.3176, 0.8235, 0.7412
RGB percentages31.8%, 82.4%, 74.1%
HSLhsl(170.2, 58.9%, 57.1%)
HSV / HSBhsv(170.2, 61.4%, 82.4%)
CMYK61.4%, 0%, 10%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,362,365
CSS custom property--colour: #51D2BD;

Brightness & contrast

Relative luminance0.51517WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.3:1
Contrast with white1.86:1WCAG normal text: Fail
Contrast with black11.3:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#AE2D42

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9C6BCno red cones; affects about 1% of men; ΔE 40.1 from the original
Deuteranopia#B6B8BFno green cones; the most common form, about 1% of men; ΔE 41.2 from the original
Tritanopia#00D5CCno blue cones; rare, and affects men and women equally; ΔE 8.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.86:1WCAG large text: Fail
Contrast with black, large text11.3:1WCAG large text: AAA

Named colours

Turquoise · ΔE 6.9Medium aquamarine · ΔE 8.7Medium turquoise · ΔE 8.8Light seagreen · ΔE 13.1Dark turquoise · ΔE 13.5Aquamarine · ΔE 18.7
Nearest named CSS colourTurquoise (#40E0D0)ΔE 6.91, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D25166
Analogous#51D27D, #51A7D2
Triadic#BD51D2, #D2BD51
Split complementary#D251A7, #D27D51
Tetradic#7C51D2, #D25166, #A6D251

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3FCFA
Lighter +30%#CBF1EB
Lighter +20%#A2E7DC
Lighter +10%#7ADCCC
Darker −10%#31BFA8
Darker −20%#279684
Darker −30%#1C6E60
Darker −40%#12453D
More saturated +25%#36EDCF
Less saturated −25%#6CB7AB

Channel breakdown

R81
G210
B189
Red81 (31.8%)
Green210 (82.4%)
Blue189 (74.1%)
Hue170.23°
Saturation (HSL)58.9%
Lightness57.06%
Dominant channelGreen
Hex per channelR 51 · G D2 · B BD

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Every value on this page was computed from “51d2bd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.