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Recognised as Colour

#457BDA

  • #457BDA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#457BDA is a blue with RGB values 69, 123, 218 and HSL 218°, 67%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#457BDA#457BDA
HEX#457BDA
RGBrgb(69, 123, 218)
RGB (0–1)0.2706, 0.4824, 0.8549
RGB percentages27.1%, 48.2%, 85.5%
HSLhsl(218.3, 66.8%, 56.3%)
HSV / HSBhsv(218.3, 68.3%, 85.5%)
CMYK68.3%, 43.6%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,553,690
CSS custom property--colour: #457BDA;

Brightness & contrast

Relative luminance0.20493WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.1:1
Contrast with white4.12:1WCAG normal text: Fail
Contrast with black5.1:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#BA8425

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D84DEno red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#3377D8no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#0091A0no blue cones; rare, and affects men and women equally; ΔE 54.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.12:1WCAG large text: AA
Contrast with black, large text5.1:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.3Dodgerblue · ΔE 12.1Royal blue · ΔE 17.9Medium purple · ΔE 24.2Slate blue · ΔE 24.3Steel blue · ΔE 27.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DAA445
Analogous#45C5DA, #5A45DA
Triadic#DA457B, #7BDA45
Split complementary#DA5A45, #C5DA45
Tetradic#DA45C5, #DAA445, #45DA5A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF4FC
Lighter +30%#C5D6F3
Lighter +20%#9AB7EB
Lighter +10%#7099E2
Darker −10%#2760C5
Darker −20%#1F4B9A
Darker −30%#163770
Darker −40%#0E2245
More saturated +25%#2973F6
Less saturated −25%#6183BE

Channel breakdown

R69
G123
B218
Red69 (27.1%)
Green123 (48.2%)
Blue218 (85.5%)
Hue218.26°
Saturation (HSL)66.82%
Lightness56.27%
Dominant channelBlue
Hex per channelR 45 · G 7B · B DA

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Every value on this page was computed from “457bda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.