Nerdulator> put something in

Recognised as Colour

#40CFD9

  • #40CFD9
  • Cyan
  • Light
  • Nearest: Dark turquoise

#40CFD9 is a cyan with RGB values 64, 207, 217 and HSL 184°, 67%, 55%. It is a light colour, so black text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#40CFD9#40CFD9
HEX#40CFD9
RGBrgb(64, 207, 217)
RGB (0–1)0.251, 0.8118, 0.851
RGB percentages25.1%, 81.2%, 85.1%
HSLhsl(183.9, 66.8%, 55.1%)
HSV / HSBhsv(183.9, 70.5%, 85.1%)
CMYK70.5%, 4.6%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,247,513
CSS custom property--colour: #40CFD9;

Brightness & contrast

Relative luminance0.50725WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.15:1
Contrast with white1.88:1WCAG normal text: Fail
Contrast with black11.15:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#BF3026

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BFC6DAno red cones; affects about 1% of men; ΔE 35.9 from the original
Deuteranopia#A9B6DAno green cones; the most common form, about 1% of men; ΔE 37.3 from the original
Tritanopia#00D7D2no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.88:1WCAG large text: Fail
Contrast with black, large text11.15:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 6.8Medium turquoise · ΔE 8.4Light seagreen · ΔE 14.9Turquoise · ΔE 16.4Sky blue · ΔE 19.9Aqua · ΔE 20.5
Nearest named CSS colourDark turquoise (#00CED1)ΔE 6.76, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D94A40
Analogous#40D996, #4083D9
Triadic#D940CF, #CFD940
Split complementary#D94083, #D99640
Tetradic#9640D9, #D94A40, #83D940

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAFAFB
Lighter +30%#C0EFF2
Lighter +20%#95E4EA
Lighter +10%#6BDAE1
Darker −10%#26B6C0
Darker −20%#1E8D95
Darker −30%#15656B
Darker −40%#0D3D40
More saturated +25%#23E8F6
Less saturated −25%#5DB6BC

Channel breakdown

R64
G207
B217
Red64 (25.1%)
Green207 (81.2%)
Blue217 (85.1%)
Hue183.92°
Saturation (HSL)66.81%
Lightness55.1%
Dominant channelBlue
Hex per channelR 40 · G CF · B D9

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 “40cfd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.