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Recognised as Colour

#37BFB7

  • #37BFB7
  • Cyan
  • Dark
  • Nearest: Light seagreen

#37BFB7 is a cyan with RGB values 55, 191, 183 and HSL 176°, 55%, 48%. It is a dark colour, so black text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#37BFB7#37BFB7
HEX#37BFB7
RGBrgb(55, 191, 183)
RGB (0–1)0.2157, 0.749, 0.7176
RGB percentages21.6%, 74.9%, 71.8%
HSLhsl(176.5, 55.3%, 48.2%)
HSV / HSBhsv(176.5, 71.2%, 74.9%)
CMYK71.2%, 0%, 4.2%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,653,559
CSS custom property--colour: #37BFB7;

Brightness & contrast

Relative luminance0.41493WCAG 2.x, 0 is black and 1 is white
Perceived brightness161.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.3:1
Contrast with white2.26:1WCAG normal text: Fail
Contrast with black9.3:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#C84048

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B4B5B7no red cones; affects about 1% of men; ΔE 37.8 from the original
Deuteranopia#A1A6B8no green cones; the most common form, about 1% of men; ΔE 39.4 from the original
Tritanopia#00C4BCno blue cones; rare, and affects men and women equally; ΔE 4.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.26:1WCAG large text: Fail
Contrast with black, large text9.3:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 4.7Medium turquoise · ΔE 6.6Dark turquoise · ΔE 9Turquoise · ΔE 12.9Medium aquamarine · ΔE 15.7Dark cyan · ΔE 19.7
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 4.74, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF373F
Analogous#37BF73, #3783BF
Triadic#B737BF, #BFB737
Split complementary#BF3783, #BF7337
Tetradic#7337BF, #BF373F, #83BF37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0F2F0
Lighter +30%#A9E6E3
Lighter +20%#81DBD6
Lighter +10%#5ACFC8
Darker −10%#2C9791
Darker −20%#20706B
Darker −30%#154845
Darker −40%#09211F
More saturated +25%#18DED2
Less saturated −25%#56A09C

Channel breakdown

R55
G191
B183
Red55 (21.6%)
Green191 (74.9%)
Blue183 (71.8%)
Hue176.47°
Saturation (HSL)55.28%
Lightness48.24%
Dominant channelGreen
Hex per channelR 37 · G BF · B B7

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Every value on this page was computed from “37bfb7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.