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Recognised as Colour

#317AD8

  • #317AD8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#317AD8 is a blue with RGB values 49, 122, 216 and HSL 214°, 68%, 52%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#317AD8#317AD8
HEX#317AD8
RGBrgb(49, 122, 216)
RGB (0–1)0.1922, 0.4784, 0.8471
RGB percentages19.2%, 47.8%, 84.7%
HSLhsl(213.8, 68.2%, 52%)
HSV / HSBhsv(213.8, 77.3%, 84.7%)
CMYK77.3%, 43.5%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,242,712
CSS custom property--colour: #317AD8;

Brightness & contrast

Relative luminance0.1953WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.91:1
Contrast with white4.28:1WCAG normal text: Fail
Contrast with black4.91:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#CE8527

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A82DCno red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#2973D6no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#00909Eno blue cones; rare, and affects men and women equally; ΔE 53.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.28:1WCAG large text: AA
Contrast with black, large text4.91:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.9Dodgerblue · ΔE 11.9Royal blue · ΔE 19.5Slate blue · ΔE 26.6Steel blue · ΔE 26.7Medium purple · ΔE 27.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D88F31
Analogous#31CDD8, #3C31D8
Triadic#D8317A, #7AD831
Split complementary#D83C31, #CDD831
Tetradic#D831CD, #D88F31, #31D83C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDE9F8
Lighter +30%#B2CDF0
Lighter +20%#87B1E8
Lighter +10%#5C96E0
Darker −10%#2262B4
Darker −20%#1A4B89
Darker −30%#12335E
Darker −40%#0A1C33
More saturated +25%#1276F7
Less saturated −25%#507EB9

Channel breakdown

R49
G122
B216
Red49 (19.2%)
Green122 (47.8%)
Blue216 (84.7%)
Hue213.77°
Saturation (HSL)68.16%
Lightness51.96%
Dominant channelBlue
Hex per channelR 31 · G 7A · B D8

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Every value on this page was computed from “317ad8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.