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Recognised as Colour

#39A9E3

  • #39A9E3
  • Blue
  • Dark
  • Nearest: Deep skyblue

#39A9E3 is a blue with RGB values 57, 169, 227 and HSL 200°, 75%, 56%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#39A9E3#39A9E3
HEX#39A9E3
RGBrgb(57, 169, 227)
RGB (0–1)0.2235, 0.6627, 0.8902
RGB percentages22.4%, 66.3%, 89%
HSLhsl(200.5, 75.2%, 55.7%)
HSV / HSBhsv(200.5, 74.9%, 89%)
CMYK74.9%, 25.6%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,779,043
CSS custom property--colour: #39A9E3;

Brightness & contrast

Relative luminance0.34792WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.96:1
Contrast with white2.64:1WCAG normal text: Fail
Contrast with black7.96:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#C6561C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8DA8E6no red cones; affects about 1% of men; ΔE 18.9 from the original
Deuteranopia#7698E2no green cones; the most common form, about 1% of men; ΔE 20.7 from the original
Tritanopia#00B8BDno blue cones; rare, and affects men and women equally; ΔE 34.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.64:1WCAG large text: Fail
Contrast with black, large text7.96:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 9.9Steel blue · ΔE 16.6Light skyblue · ΔE 17.2Sky blue · ΔE 21.8Cornflower blue · ΔE 24.5Light steelblue · ΔE 28.5
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 9.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E37339
Analogous#39E3C8, #3954E3
Triadic#E339A9, #A9E339
Split complementary#E33954, #E3C839
Tetradic#C839E3, #E37339, #54E339

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECF7FC
Lighter +30%#BFE3F6
Lighter +20%#92D0F0
Lighter +10%#66BCE9
Darker −10%#1D90CC
Darker −20%#17719F
Darker −30%#105173
Darker −40%#0A3246
More saturated +25%#1DB2FF
Less saturated −25%#55A0C7

Channel breakdown

R57
G169
B227
Red57 (22.4%)
Green169 (66.3%)
Blue227 (89%)
Hue200.47°
Saturation (HSL)75.22%
Lightness55.69%
Dominant channelBlue
Hex per channelR 39 · G A9 · B E3

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Every value on this page was computed from “39a9e3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.