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Recognised as Colour

#3A90E3

  • #3A90E3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3A90E3 is a blue with RGB values 58, 144, 227 and HSL 209°, 75%, 56%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3A90E3#3A90E3
HEX#3A90E3
RGBrgb(58, 144, 227)
RGB (0–1)0.2275, 0.5647, 0.8902
RGB percentages22.7%, 56.5%, 89%
HSLhsl(209.5, 75.1%, 55.9%)
HSV / HSBhsv(209.5, 74.4%, 89%)
CMYK74.4%, 36.6%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,838,179
CSS custom property--colour: #3A90E3;

Brightness & contrast

Relative luminance0.26392WCAG 2.x, 0 is black and 1 is white
Perceived brightness138 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.28:1
Contrast with white3.34:1WCAG normal text: Fail
Contrast with black6.28:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#C56F1C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6995E6no red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#5085E1no green cones; the most common form, about 1% of men; ΔE 9.8 from the original
Tritanopia#00A4AFno blue cones; rare, and affects men and women equally; ΔE 47.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.34:1WCAG large text: AA
Contrast with black, large text6.28:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8Dodgerblue · ΔE 16Steel blue · ΔE 19.3Deep skyblue · ΔE 25.3Royal blue · ΔE 30.8Light skyblue · ΔE 32.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.05, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E38D3A
Analogous#3AE3E1, #3A3CE3
Triadic#E33A90, #90E33A
Split complementary#E33A3C, #E3E23A
Tetradic#E13AE3, #E38D3A, #3CE33A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF5FC
Lighter +30%#C0DBF6
Lighter +20%#93C2F0
Lighter +10%#67A9E9
Darker −10%#1D77CD
Darker −20%#175DA0
Darker −30%#104374
Darker −40%#0A2947
More saturated +25%#1E90FF
Less saturated −25%#5690C7

Channel breakdown

R58
G144
B227
Red58 (22.7%)
Green144 (56.5%)
Blue227 (89%)
Hue209.47°
Saturation (HSL)75.11%
Lightness55.88%
Dominant channelBlue
Hex per channelR 3A · G 90 · B E3

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Every value on this page was computed from “3a90e3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.