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Colour

#4563A3

  • #4563A3
  • Blue
  • Dark
  • Nearest: Steel blue

#4563A3 is a blue with RGB values 69, 99, 163 and HSL 221°, 41%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4563A3#4563A3
HEX#4563A3
RGBrgb(69, 99, 163)
RGB (0–1)0.2706, 0.3882, 0.6392
RGB percentages27.1%, 38.8%, 63.9%
HSLhsl(220.9, 40.5%, 45.5%)
HSV / HSBhsv(220.9, 57.7%, 63.9%)
CMYK57.7%, 39.3%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,547,491
CSS custom property--colour: #4563A3;

Brightness & contrast

Relative luminance0.12833WCAG 2.x, 0 is black and 1 is white
Perceived brightness101 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.89:1
Contrast with white5.89:1WCAG normal text: AA
Contrast with black3.57:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#BA9C5C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4869A6no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#3C60A2no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#00717Bno blue cones; rare, and affects men and women equally; ΔE 40.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.89:1WCAG large text: AAA
Contrast with black, large text3.57:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.3Dark slateblue · ΔE 21.2Cornflower blue · ΔE 22.5Dodgerblue · ΔE 30.6Slate grey · ΔE 31.2Light slate grey · ΔE 32
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.29, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A38545
Analogous#4592A3, #5645A3
Triadic#A34563, #63A345
Split complementary#A35645, #92A345
Tetradic#A34592, #A38545, #45A356

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD5E9
Lighter +30%#A7B7DA
Lighter +20%#839ACB
Lighter +10%#607DBB
Darker −10%#364D7F
Darker −20%#27375B
Darker −30%#172238
Darker −40%#080C14
More saturated +25%#2859C0
Less saturated −25%#626D86

Channel breakdown

R69
G99
B163
Red69 (27.1%)
Green99 (38.8%)
Blue163 (63.9%)
Hue220.85°
Saturation (HSL)40.52%
Lightness45.49%
Dominant channelBlue
Hex per channelR 45 · G 63 · B A3

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Every value on this page was computed from “4563a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.