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Recognised as Colour

#00A4EE

  • #00A4EE
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#00A4EE is a cyan with RGB values 0, 164, 238 and HSL 199°, 100%, 47%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#00A4EE#00A4EE
HEX#00A4EE
RGBrgb(0, 164, 238)
RGB (0–1)0, 0.6431, 0.9333
RGB percentages0%, 64.3%, 93.3%
HSLhsl(198.7, 100%, 46.7%)
HSV / HSBhsv(198.7, 100%, 93.3%)
CMYK100%, 31.1%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer42,222
CSS custom property--colour: #00A4EE;

Brightness & contrast

Relative luminance0.32724WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.54:1
Contrast with white2.78:1WCAG normal text: Fail
Contrast with black7.54:1WCAG normal text: AAA
Greyscale equivalent#868686
Inverted#FF5B11

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#80A5F1no red cones; affects about 1% of men; ΔE 17.7 from the original
Deuteranopia#6393EDno green cones; the most common form, about 1% of men; ΔE 19.9 from the original
Tritanopia#00B7BEno blue cones; rare, and affects men and women equally; ΔE 41.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.78:1WCAG large text: Fail
Contrast with black, large text7.54:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 12.9Cornflower blue · ΔE 18.7Steel blue · ΔE 19.3Light skyblue · ΔE 24.2Dodgerblue · ΔE 25.7Sky blue · ΔE 30.3
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 12.88, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EE4A00
Analogous#00EEC1, #002DEE
Triadic#EE00A4, #A4EE00
Split complementary#EE002D, #EEC100
Tetradic#C100EE, #EE4A00, #2DEE00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBEAFF
Lighter +30%#88DAFF
Lighter +20%#55CAFF
Lighter +10%#22BAFF
Darker −10%#0081BB
Darker −20%#005E88
Darker −30%#003B55
Darker −40%#001722
More saturated +25%#00A4EE
Less saturated −25%#1E99D0

Channel breakdown

R0
G164
B238
Red0 (0%)
Green164 (64.3%)
Blue238 (93.3%)
Hue198.66°
Saturation (HSL)100%
Lightness46.67%
Dominant channelBlue
Hex per channelR 00 · G A4 · B EE

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Every value on this page was computed from “00a4ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.