Nerdulator> put something in

Recognised as Colour

#4197DB

  • #4197DB
  • Blue
  • Dark
  • Nearest: Steel blue

#4197DB is a blue with RGB values 65, 151, 219 and HSL 206°, 68%, 56%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4197DB#4197DB
HEX#4197DB
RGBrgb(65, 151, 219)
RGB (0–1)0.2549, 0.5922, 0.8588
RGB percentages25.5%, 59.2%, 85.9%
HSLhsl(206.5, 68.1%, 55.7%)
HSV / HSBhsv(206.5, 70.3%, 85.9%)
CMYK70.3%, 31.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,298,715
CSS custom property--colour: #4197DB;

Brightness & contrast

Relative luminance0.28372WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.67:1
Contrast with white3.15:1WCAG normal text: Fail
Contrast with black6.67:1WCAG normal text: AA
Greyscale equivalent#8A8A8A
Inverted#BE6824

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7899DEno red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#638BDAno green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#00A7AFno blue cones; rare, and affects men and women equally; ΔE 39.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.15:1WCAG large text: AA
Contrast with black, large text6.67:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.6Cornflower blue · ΔE 15.1Deep skyblue · ΔE 18.5Light skyblue · ΔE 24.8Dodgerblue · ΔE 25.4Sky blue · ΔE 30.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DB8541
Analogous#41DBD2, #414ADB
Triadic#DB4197, #97DB41
Split complementary#DB414A, #DBD241
Tetradic#D241DB, #DB8541, #4ADB41

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF5FB
Lighter +30%#C2DDF3
Lighter +20%#97C6EB
Lighter +10%#6CAEE3
Darker −10%#257EC4
Darker −20%#1D6299
Darker −30%#15476E
Darker −40%#0D2B43
More saturated +25%#259AF7
Less saturated −25%#5D94BF

Channel breakdown

R65
G151
B219
Red65 (25.5%)
Green151 (59.2%)
Blue219 (85.9%)
Hue206.49°
Saturation (HSL)68.14%
Lightness55.69%
Dominant channelBlue
Hex per channelR 41 · G 97 · 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 “4197db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.