Nerdulator> put something in

Recognised as Colour

#37DDCF

  • #37DDCF
  • Cyan
  • Light
  • Nearest: Turquoise

#37DDCF is a cyan with RGB values 55, 221, 207 and HSL 175°, 71%, 54%. It is a light colour, so black text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#37DDCF#37DDCF
HEX#37DDCF
RGBrgb(55, 221, 207)
RGB (0–1)0.2157, 0.8667, 0.8118
RGB percentages21.6%, 86.7%, 81.2%
HSLhsl(174.9, 70.9%, 54.1%)
HSV / HSBhsv(174.9, 75.1%, 86.7%)
CMYK75.1%, 0%, 6.3%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,661,263
CSS custom property--colour: #37DDCF;

Brightness & contrast

Relative luminance0.5703WCAG 2.x, 0 is black and 1 is white
Perceived brightness185.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.41:1
Contrast with white1.69:1WCAG normal text: Fail
Contrast with black12.41:1WCAG normal text: AAA
Greyscale equivalent#B9B9B9
Inverted#C82230

Colour vision & accessibility

Protanopia#D1D1CFno red cones; affects about 1% of men; ΔE 44.3 from the original
Deuteranopia#BBC0D1no green cones; the most common form, about 1% of men; ΔE 45.9 from the original
Tritanopia#00E2D8no blue cones; rare, and affects men and women equally; ΔE 4.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.69:1WCAG large text: Fail
Contrast with black, large text12.41:1WCAG large text: AAA

Named colours

Nearest named CSS colourTurquoise (#40E0D0)ΔE 1.51, below the just-noticeable difference
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#DD3745
Analogous#37DD7C, #3798DD
Triadic#CF37DD, #DDCF37
Split complementary#DD3798, #DD7C37
Tetradic#7C37DD, #DD3745, #98DD37

Tints, shades & saturation

Lighter +40%#E5FBF9
Lighter +30%#BAF3EE
Lighter +20%#8EECE4
Lighter +10%#63E4D9
Darker −10%#21C0B3
Darker −20%#19958A
Darker −30%#126962
Darker −40%#0A3E39
More saturated +25%#1AFAE7
Less saturated −25%#54C0B7

Channel breakdown

R55
G221
B207
Red55 (21.6%)
Green221 (86.7%)
Blue207 (81.2%)
Hue174.94°
Saturation (HSL)70.94%
Lightness54.12%
Dominant channelGreen
Hex per channelR 37 · G DD · B CF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “37ddcf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.