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Recognised as Colour

#40ABCD

  • #40ABCD
  • Cyan
  • Dark
  • Nearest: Sky blue

#40ABCD is a cyan with RGB values 64, 171, 205 and HSL 194°, 59%, 53%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#40ABCD#40ABCD
HEX#40ABCD
RGBrgb(64, 171, 205)
RGB (0–1)0.251, 0.6706, 0.8039
RGB percentages25.1%, 67.1%, 80.4%
HSLhsl(194.5, 58.5%, 52.7%)
HSV / HSBhsv(194.5, 68.8%, 80.4%)
CMYK68.8%, 16.6%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,238,285
CSS custom property--colour: #40ABCD;

Brightness & contrast

Relative luminance0.34624WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.92:1
Contrast with white2.65:1WCAG normal text: Fail
Contrast with black7.92:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#BF5432

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#97A7CFno red cones; affects about 1% of men; ΔE 23.6 from the original
Deuteranopia#8499CDno green cones; the most common form, about 1% of men; ΔE 25.1 from the original
Tritanopia#00B6B6no blue cones; rare, and affects men and women equally; ΔE 23.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.65:1WCAG large text: Fail
Contrast with black, large text7.92:1WCAG large text: AAA

Named colours

Sky blue · ΔE 15.4Light skyblue · ΔE 16.9Deep skyblue · ΔE 17.9Cadetblue · ΔE 19.3Steel blue · ΔE 21.1Dark cyan · ΔE 24.3
Nearest named CSS colourSky blue (#87CEEB)ΔE 15.37, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD6240
Analogous#40CDA9, #4064CD
Triadic#CD40AB, #ABCD40
Split complementary#CD4064, #CDA940
Tetradic#A940CD, #CD6240, #64CD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E2F2F7
Lighter +30%#B9E0ED
Lighter +20%#91CFE2
Lighter +10%#68BDD8
Darker −10%#2D8EAD
Darker −20%#236D84
Darker −30%#184C5C
Darker −40%#0D2A34
More saturated +25%#22BBEB
Less saturated −25%#5E9BAF

Channel breakdown

R64
G171
B205
Red64 (25.1%)
Green171 (67.1%)
Blue205 (80.4%)
Hue194.47°
Saturation (HSL)58.51%
Lightness52.75%
Dominant channelBlue
Hex per channelR 40 · G AB · B CD

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Every value on this page was computed from “40abcd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.