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Recognised as Colour

#13B3DF

  • #13B3DF
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#13B3DF is a cyan with RGB values 19, 179, 223 and HSL 193°, 84%, 47%. It is a dark colour, so black text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#13B3DF#13B3DF
HEX#13B3DF
RGBrgb(19, 179, 223)
RGB (0–1)0.0745, 0.702, 0.8745
RGB percentages7.5%, 70.2%, 87.5%
HSLhsl(192.9, 84.3%, 47.5%)
HSV / HSBhsv(192.9, 91.5%, 87.5%)
CMYK91.5%, 19.7%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,291,231
CSS custom property--colour: #13B3DF;

Brightness & contrast

Relative luminance0.37706WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.54:1
Contrast with white2.46:1WCAG normal text: Fail
Contrast with black8.54:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#EC4C20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9AAFE1no red cones; affects about 1% of men; ΔE 26.9 from the original
Deuteranopia#829EDFno green cones; the most common form, about 1% of men; ΔE 29 from the original
Tritanopia#00C0C1no blue cones; rare, and affects men and women equally; ΔE 26.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.46:1WCAG large text: Fail
Contrast with black, large text8.54:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 11.9Light skyblue · ΔE 16.8Sky blue · ΔE 17.5Steel blue · ΔE 23.5Cadetblue · ΔE 26.1Dark turquoise · ΔE 27.3
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 11.85, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF3F13
Analogous#13DFA5, #134DDF
Triadic#DF13B3, #B3DF13
Split complementary#DF134D, #DFA513
Tetradic#A513DF, #DF3F13, #4DDF13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4EEFA
Lighter +30%#95E1F6
Lighter +20%#66D4F2
Lighter +10%#37C7EE
Darker −10%#0F8DB0
Darker −20%#0B6881
Darker −30%#074252
Darker −40%#031C23
More saturated +25%#00BEF2
Less saturated −25%#31A2C1

Channel breakdown

R19
G179
B223
Red19 (7.5%)
Green179 (70.2%)
Blue223 (87.5%)
Hue192.94°
Saturation (HSL)84.3%
Lightness47.45%
Dominant channelBlue
Hex per channelR 13 · G B3 · B DF

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Every value on this page was computed from “13b3df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.