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Recognised as Colour

#03A4F3

  • #03A4F3
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#03A4F3 is a cyan with RGB values 3, 164, 243 and HSL 200°, 98%, 48%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#03A4F3#03A4F3
HEX#03A4F3
RGBrgb(3, 164, 243)
RGB (0–1)0.0118, 0.6431, 0.9529
RGB percentages1.2%, 64.3%, 95.3%
HSLhsl(199.8, 97.6%, 48.2%)
HSV / HSBhsv(199.8, 98.8%, 95.3%)
CMYK98.8%, 32.5%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer238,835
CSS custom property--colour: #03A4F3;

Brightness & contrast

Relative luminance0.33041WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.61:1
Contrast with white2.76:1WCAG normal text: Fail
Contrast with black7.61:1WCAG normal text: AAA
Greyscale equivalent#878787
Inverted#FC5B0C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7EA6F6no red cones; affects about 1% of men; ΔE 16.4 from the original
Deuteranopia#5F93F2no green cones; the most common form, about 1% of men; ΔE 19 from the original
Tritanopia#00B8C0no blue cones; rare, and affects men and women equally; ΔE 44.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.76:1WCAG large text: Fail
Contrast with black, large text7.61:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 14.9Cornflower blue · ΔE 16.7Steel blue · ΔE 20.9Dodgerblue · ΔE 22.8Light skyblue · ΔE 26.1Sky blue · ΔE 32.6
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 14.94, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F35203
Analogous#03F3CA, #032CF3
Triadic#F303A4, #A4F303
Split complementary#F3032C, #F3CA03
Tetradic#CA03F3, #F35203, #2CF303

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4EBFE
Lighter +30%#91DAFE
Lighter +20%#5FC9FD
Lighter +10%#2DB8FC
Darker −10%#0282C1
Darker −20%#02608E
Darker −30%#013E5C
Darker −40%#011C29
More saturated +25%#00A5F6
Less saturated −25%#2299D4

Channel breakdown

R3
G164
B243
Red3 (1.2%)
Green164 (64.3%)
Blue243 (95.3%)
Hue199.75°
Saturation (HSL)97.56%
Lightness48.24%
Dominant channelBlue
Hex per channelR 03 · G A4 · B F3

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Every value on this page was computed from “03a4f3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.