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Recognised as Colour

#315DA6

  • #315DA6
  • Blue
  • Dark
  • Nearest: Dark slateblue

#315DA6 is a blue with RGB values 49, 93, 166 and HSL 217°, 54%, 42%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#315DA6#315DA6
HEX#315DA6
RGBrgb(49, 93, 166)
RGB (0–1)0.1922, 0.3647, 0.651
RGB percentages19.2%, 36.5%, 65.1%
HSLhsl(217.4, 54.4%, 42.2%)
HSV / HSBhsv(217.4, 70.5%, 65.1%)
CMYK70.5%, 44%, 0%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,235,238
CSS custom property--colour: #315DA6;

Brightness & contrast

Relative luminance0.11235WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.47:1
Contrast with white6.47:1WCAG normal text: AA
Contrast with black3.25:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#CEA259

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A64A9no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#2559A5no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#006E79no blue cones; rare, and affects men and women equally; ΔE 44.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.47:1WCAG large text: AAA
Contrast with black, large text3.25:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.5Steel blue · ΔE 22.1Cornflower blue · ΔE 22.6Dodgerblue · ΔE 27.6Royal blue · ΔE 28Slate blue · ΔE 30
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A67A31
Analogous#3197A6, #4031A6
Triadic#A6315D, #5DA631
Split complementary#A64031, #97A631
Tetradic#A63197, #A67A31, #31A640

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9CBEA
Lighter +30%#91AEDF
Lighter +20%#6A91D3
Lighter +10%#4375C7
Darker −10%#25477F
Darker −20%#1A3157
Darker −30%#0E1B30
Darker −40%#030508
More saturated +25%#1656C1
Less saturated −25%#4C648B

Channel breakdown

R49
G93
B166
Red49 (19.2%)
Green93 (36.5%)
Blue166 (65.1%)
Hue217.44°
Saturation (HSL)54.42%
Lightness42.16%
Dominant channelBlue
Hex per channelR 31 · G 5D · B A6

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Every value on this page was computed from “315da6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.