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Recognised as Colour

#51AFA7

  • #51AFA7
  • Cyan
  • Dark
  • Nearest: Light seagreen

#51AFA7 is a cyan with RGB values 81, 175, 167 and HSL 175°, 37%, 50%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#51AFA7#51AFA7
HEX#51AFA7
RGBrgb(81, 175, 167)
RGB (0–1)0.3176, 0.6863, 0.6549
RGB percentages31.8%, 68.6%, 65.5%
HSLhsl(174.9, 37%, 50.2%)
HSV / HSBhsv(174.9, 53.7%, 68.6%)
CMYK53.7%, 0%, 4.6%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,353,383
CSS custom property--colour: #51AFA7;

Brightness & contrast

Relative luminance0.35199WCAG 2.x, 0 is black and 1 is white
Perceived brightness152 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.04:1
Contrast with white2.61:1WCAG normal text: Fail
Contrast with black8.04:1WCAG normal text: AAA
Greyscale equivalent#9A9A9A
Inverted#AE5058

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A7A7A7no red cones; affects about 1% of men; ΔE 30.2 from the original
Deuteranopia#979BA8no green cones; the most common form, about 1% of men; ΔE 31.1 from the original
Tritanopia#04B3ACno blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.61:1WCAG large text: Fail
Contrast with black, large text8.04:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 8Cadetblue · ΔE 11.5Medium turquoise · ΔE 14Dark cyan · ΔE 14.5Dark turquoise · ΔE 16.7Teal · ΔE 18.1
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 8.04, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF5159
Analogous#51AF78, #5188AF
Triadic#A751AF, #AFA751
Split complementary#AF5188, #AF7851
Tetradic#7851AF, #AF5159, #88AF51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDEFEE
Lighter +30%#BADFDC
Lighter +20%#97CFCA
Lighter +10%#74BFB9
Darker −10%#418C86
Darker −20%#316965
Darker −30%#204743
Darker −40%#102422
More saturated +25%#31CFC1
Less saturated −25%#718F8D

Channel breakdown

R81
G175
B167
Red81 (31.8%)
Green175 (68.6%)
Blue167 (65.5%)
Hue174.89°
Saturation (HSL)37.01%
Lightness50.2%
Dominant channelGreen
Hex per channelR 51 · G AF · B A7

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Every value on this page was computed from “51afa7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.