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Recognised as Colour

#3A9AEF

  • #3A9AEF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3A9AEF is a blue with RGB values 58, 154, 239 and HSL 208°, 85%, 58%. It is a dark colour, so black text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3A9AEF#3A9AEF
HEX#3A9AEF
RGBrgb(58, 154, 239)
RGB (0–1)0.2275, 0.6039, 0.9373
RGB percentages22.7%, 60.4%, 93.7%
HSLhsl(208.2, 85%, 58.2%)
HSV / HSBhsv(208.2, 75.7%, 93.7%)
CMYK75.7%, 35.6%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,840,751
CSS custom property--colour: #3A9AEF;

Brightness & contrast

Relative luminance0.30243WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.05:1
Contrast with white2.98:1WCAG normal text: Fail
Contrast with black7.05:1WCAG normal text: AAA
Greyscale equivalent#8C8C8C
Inverted#C56510

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#729FF3no red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#588EEDno green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#00AEB9no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.98:1WCAG large text: Fail
Contrast with black, large text7.05:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.9Dodgerblue · ΔE 16.1Steel blue · ΔE 21.2Deep skyblue · ΔE 22.6Light skyblue · ΔE 30.6Royal blue · ΔE 32.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.91, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF8F3A
Analogous#3AEFE9, #3A40EF
Triadic#EF3A9A, #9AEF3A
Split complementary#EF3A40, #EFE93A
Tetradic#E93AEF, #EF8F3A, #40EF3A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7FBFE
Lighter +30%#C8E3FA
Lighter +20%#98CAF7
Lighter +10%#69B2F3
Darker −10%#1281E4
Darker −20%#0F67B4
Darker −30%#0B4C85
Darker −40%#073156
More saturated +25%#2A9BFF
Less saturated −25%#5598D4

Channel breakdown

R58
G154
B239
Red58 (22.7%)
Green154 (60.4%)
Blue239 (93.7%)
Hue208.18°
Saturation (HSL)84.98%
Lightness58.24%
Dominant channelBlue
Hex per channelR 3A · G 9A · B EF

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Every value on this page was computed from “3a9aef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.