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Recognised as Colour

#3FEFF4

  • #3FEFF4
  • Cyan
  • Light
  • Nearest: Aqua

#3FEFF4 is a cyan with RGB values 63, 239, 244 and HSL 182°, 89%, 60%. It is a light colour, so black text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#3FEFF4#3FEFF4
HEX#3FEFF4
RGBrgb(63, 239, 244)
RGB (0–1)0.2471, 0.9373, 0.9569
RGB percentages24.7%, 93.7%, 95.7%
HSLhsl(181.7, 89.2%, 60.2%)
HSV / HSBhsv(181.7, 74.2%, 95.7%)
CMYK74.2%, 2%, 0%, 4.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,190,196
CSS custom property--colour: #3FEFF4;

Brightness & contrast

Relative luminance0.69321WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.86:1
Contrast with white1.41:1WCAG normal text: Fail
Contrast with black14.86:1WCAG normal text: AAA
Greyscale equivalent#CACACA
Inverted#C0100B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#DEE4F5no red cones; affects about 1% of men; ΔE 42.8 from the original
Deuteranopia#C4D1F5no green cones; the most common form, about 1% of men; ΔE 44.2 from the original
Tritanopia#00F7F0no blue cones; rare, and affects men and women equally; ΔE 9.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.41:1WCAG large text: Fail
Contrast with black, large text14.86:1WCAG large text: AAA

Named colours

Aqua · ΔE 8.5Cyan · ΔE 8.5Dark turquoise · ΔE 11.5Medium turquoise · ΔE 12.4Turquoise · ΔE 12.6Light seagreen · ΔE 22.9
Nearest named CSS colourAqua (#00FFFF)ΔE 8.47, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F4443F
Analogous#3FF49F, #3F95F4
Triadic#F43FEF, #EFF43F
Split complementary#F43F95, #F49E3F
Tetradic#9F3FF4, #F4443F, #95F43F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D0FBFC
Lighter +20%#9FF7FA
Lighter +10%#6FF3F7
Darker −10%#0FEBF1
Darker −20%#0BBDC2
Darker −30%#088E92
Darker −40%#065F61
More saturated +25%#34F9FF
Less saturated −25%#58D7DB

Channel breakdown

R63
G239
B244
Red63 (24.7%)
Green239 (93.7%)
Blue244 (95.7%)
Hue181.66°
Saturation (HSL)89.16%
Lightness60.2%
Dominant channelBlue
Hex per channelR 3F · G EF · B F4

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Every value on this page was computed from “3feff4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.