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Recognised as Colour

#357ADD

  • #357ADD
  • Blue
  • Dark
  • Nearest: Dodgerblue

#357ADD is a blue with RGB values 53, 122, 221 and HSL 215°, 71%, 54%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#357ADD#357ADD
HEX#357ADD
RGBrgb(53, 122, 221)
RGB (0–1)0.2078, 0.4784, 0.8667
RGB percentages20.8%, 47.8%, 86.7%
HSLhsl(215.4, 71.2%, 53.7%)
HSV / HSBhsv(215.4, 76%, 86.7%)
CMYK76%, 44.8%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,504,861
CSS custom property--colour: #357ADD;

Brightness & contrast

Relative luminance0.19896WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.98:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.98:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#CA8522

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4783E1no red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#2274DBno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#0091A1no blue cones; rare, and affects men and women equally; ΔE 55.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.98:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 10.5Cornflower blue · ΔE 13.1Royal blue · ΔE 16.5Slate blue · ΔE 24.3Medium purple · ΔE 25.3Dark slateblue · ΔE 28.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 10.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9835
Analogous#35CEDD, #4435DD
Triadic#DD357A, #7ADD35
Split complementary#DD4435, #CEDD35
Tetradic#DD35CE, #DD9835, #35DD44

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4EDFA
Lighter +30%#B8D0F3
Lighter +20%#8CB3EC
Lighter +10%#6197E4
Darker −10%#2061BF
Darker −20%#194B93
Darker −30%#113568
Darker −40%#0A1F3C
More saturated +25%#1775FB
Less saturated −25%#527FC0

Channel breakdown

R53
G122
B221
Red53 (20.8%)
Green122 (47.8%)
Blue221 (86.7%)
Hue215.36°
Saturation (HSL)71.19%
Lightness53.73%
Dominant channelBlue
Hex per channelR 35 · G 7A · B DD

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Every value on this page was computed from “357add” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.