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Recognised as Colour

#51A195

  • #51A195
  • Cyan
  • Dark
  • Nearest: Cadetblue

#51A195 is a cyan with RGB values 81, 161, 149 and HSL 171°, 33%, 47%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#51A195#51A195
HEX#51A195
RGBrgb(81, 161, 149)
RGB (0–1)0.3176, 0.6314, 0.5843
RGB percentages31.8%, 63.1%, 58.4%
HSLhsl(171, 33.1%, 47.5%)
HSV / HSBhsv(171, 49.7%, 63.1%)
CMYK49.7%, 0%, 7.5%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,349,781
CSS custom property--colour: #51A195;

Brightness & contrast

Relative luminance0.29409WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.88:1
Contrast with white3.05:1WCAG normal text: Fail
Contrast with black6.88:1WCAG normal text: AA
Greyscale equivalent#8F8F8F
Inverted#AE5E6A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9B9995no red cones; affects about 1% of men; ΔE 27.9 from the original
Deuteranopia#8E9096no green cones; the most common form, about 1% of men; ΔE 28.1 from the original
Tritanopia#29A49Dno blue cones; rare, and affects men and women equally; ΔE 7.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.05:1WCAG large text: AA
Contrast with black, large text6.88:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 10Light seagreen · ΔE 12.1Dark cyan · ΔE 12.2Teal · ΔE 14.8Medium turquoise · ΔE 19.8Medium aquamarine · ΔE 20.5
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 9.98, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A1515D
Analogous#51A16D, #5185A1
Triadic#9551A1, #A19551
Split complementary#A15185, #A16D51
Tetradic#6D51A1, #A1515D, #85A151

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D4EAE6
Lighter +30%#B2D9D3
Lighter +20%#91C7BF
Lighter +10%#6FB6AC
Darker −10%#407F76
Darker −20%#2F5D56
Darker −30%#1E3B37
Darker −40%#0D1917
More saturated +25%#33BFAA
Less saturated −25%#6F8380

Channel breakdown

R81
G161
B149
Red81 (31.8%)
Green161 (63.1%)
Blue149 (58.4%)
Hue171°
Saturation (HSL)33.06%
Lightness47.45%
Dominant channelGreen
Hex per channelR 51 · G A1 · B 95

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Every value on this page was computed from “51a195” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.