Nerdulator> put something in

Recognised as Colour

#3571DB

  • #3571DB
  • Blue
  • Dark
  • Nearest: Royal blue

#3571DB is a blue with RGB values 53, 113, 219 and HSL 218°, 70%, 53%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3571DB#3571DB
HEX#3571DB
RGBrgb(53, 113, 219)
RGB (0–1)0.2078, 0.4431, 0.8588
RGB percentages20.8%, 44.3%, 85.9%
HSLhsl(218.3, 69.7%, 53.3%)
HSV / HSBhsv(218.3, 75.8%, 85.9%)
CMYK75.8%, 48.4%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,502,555
CSS custom property--colour: #3571DB;

Brightness & contrast

Relative luminance0.17682WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.63:1
Contrast with white4.63:1WCAG normal text: AA
Contrast with black4.54:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#CA8E24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#347DDFno red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#006ED9no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#008A9Bno blue cones; rare, and affects men and women equally; ΔE 59.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.63:1WCAG large text: AAA
Contrast with black, large text4.54:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.4Dodgerblue · ΔE 13.3Cornflower blue · ΔE 18.5Slate blue · ΔE 19Medium purple · ΔE 22.4Medium slateblue · ΔE 24.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DB9F35
Analogous#35C4DB, #4C35DB
Triadic#DB3571, #71DB35
Split complementary#DB4C35, #C4DB35
Tetradic#DB35C4, #DB9F35, #35DB4C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E2EBFA
Lighter +30%#B7CCF2
Lighter +20%#8CAEEA
Lighter +10%#608FE3
Darker −10%#2159BC
Darker −20%#1A4590
Darker −30%#123065
Darker −40%#0A1B3A
More saturated +25%#1769F9
Less saturated −25%#5379BD

Channel breakdown

R53
G113
B219
Red53 (20.8%)
Green113 (44.3%)
Blue219 (85.9%)
Hue218.31°
Saturation (HSL)69.75%
Lightness53.33%
Dominant channelBlue
Hex per channelR 35 · G 71 · B DB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “3571db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.