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Recognised as Colour

#515DD7

  • #515DD7
  • Blue
  • Dark
  • Nearest: Royal blue

#515DD7 is a blue with RGB values 81, 93, 215 and HSL 235°, 63%, 58%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#515DD7#515DD7
HEX#515DD7
RGBrgb(81, 93, 215)
RGB (0–1)0.3176, 0.3647, 0.8431
RGB percentages31.8%, 36.5%, 84.3%
HSLhsl(234.6, 62.6%, 58%)
HSV / HSBhsv(234.6, 62.3%, 84.3%)
CMYK62.3%, 56.7%, 0%, 15.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,332,439
CSS custom property--colour: #515DD7;

Brightness & contrast

Relative luminance0.14484WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.39:1
Contrast with white5.39:1WCAG normal text: AA
Contrast with black3.9:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#AEA228

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070DBno red cones; affects about 1% of men; ΔE 18.3 from the original
Deuteranopia#0065D5no green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#007A91no blue cones; rare, and affects men and women equally; ΔE 68.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.39:1WCAG large text: AAA
Contrast with black, large text3.9:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.1Slate blue · ΔE 7.3Medium slateblue · ΔE 11.1Medium purple · ΔE 17.9Rebecca purple · ΔE 23.3Dodgerblue · ΔE 26.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.11, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D7CB51
Analogous#51A0D7, #8851D7
Triadic#D7515D, #5DD751
Split complementary#D78851, #A0D751
Tetradic#D751A0, #D7CB51, #51D788

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7F7FD
Lighter +30%#CDD1F4
Lighter +20%#A4AAEA
Lighter +10%#7A84E1
Darker −10%#2E3CC7
Darker −20%#242F9E
Darker −30%#1B2374
Darker −40%#11164B
More saturated +25%#3647F2
Less saturated −25%#6C73BC

Channel breakdown

R81
G93
B215
Red81 (31.8%)
Green93 (36.5%)
Blue215 (84.3%)
Hue234.63°
Saturation (HSL)62.62%
Lightness58.04%
Dominant channelBlue
Hex per channelR 51 · G 5D · B D7

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Every value on this page was computed from “515dd7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.