Nerdulator> put something in

Recognised as Colour

#40D5EB

  • #40D5EB
  • Cyan
  • Light
  • Nearest: Dark turquoise

#40D5EB is a cyan with RGB values 64, 213, 235 and HSL 188°, 81%, 59%. It is a light colour, so black text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#40D5EB#40D5EB
HEX#40D5EB
RGBrgb(64, 213, 235)
RGB (0–1)0.251, 0.8353, 0.9216
RGB percentages25.1%, 83.5%, 92.2%
HSLhsl(187.7, 81%, 58.6%)
HSV / HSBhsv(187.7, 72.8%, 92.2%)
CMYK72.8%, 9.4%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,249,067
CSS custom property--colour: #40D5EB;

Brightness & contrast

Relative luminance0.54677WCAG 2.x, 0 is black and 1 is white
Perceived brightness184.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.94:1
Contrast with white1.76:1WCAG normal text: Fail
Contrast with black11.94:1WCAG normal text: AAA
Greyscale equivalent#B7B7B7
Inverted#BF2A14

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C2CDECno red cones; affects about 1% of men; ΔE 34.6 from the original
Deuteranopia#AABCEBno green cones; the most common form, about 1% of men; ΔE 35.8 from the original
Tritanopia#00DFDCno blue cones; rare, and affects men and women equally; ΔE 16.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.76:1WCAG large text: Fail
Contrast with black, large text11.94:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 12.7Medium turquoise · ΔE 15.1Sky blue · ΔE 16.6Light seagreen · ΔE 21.3Light skyblue · ΔE 21.5Turquoise · ΔE 22.2
Nearest named CSS colourDark turquoise (#00CED1)ΔE 12.67, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EB5640
Analogous#40EBAB, #4080EB
Triadic#EB40D5, #D5EB40
Split complementary#EB407F, #EBAB40
Tetradic#AC40EB, #EB5640, #80EB40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9FEFE
Lighter +30%#CAF3FA
Lighter +20%#9CE9F5
Lighter +10%#6EDFF0
Darker −10%#18C7E0
Darker −20%#139EB2
Darker −30%#0E7584
Darker −40%#094C56
More saturated +25%#2CE4FF
Less saturated −25%#5AC1D1

Channel breakdown

R64
G213
B235
Red64 (25.1%)
Green213 (83.5%)
Blue235 (92.2%)
Hue187.72°
Saturation (HSL)81.04%
Lightness58.63%
Dominant channelBlue
Hex per channelR 40 · G D5 · B EB

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 “40d5eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.