Nerdulator> put something in

Recognised as Colour

#2859BB

  • #2859BB
  • Blue
  • Dark
  • Nearest: Royal blue

#2859BB is a blue with RGB values 40, 89, 187 and HSL 220°, 65%, 45%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2859BB#2859BB
HEX#2859BB
RGBrgb(40, 89, 187)
RGB (0–1)0.1569, 0.349, 0.7333
RGB percentages15.7%, 34.9%, 73.3%
HSLhsl(220, 64.8%, 44.5%)
HSV / HSBhsv(220, 78.6%, 73.3%)
CMYK78.6%, 52.4%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,644,411
CSS custom property--colour: #2859BB;

Brightness & contrast

Relative luminance0.11184WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.49:1
Contrast with white6.49:1WCAG normal text: AA
Contrast with black3.24:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#D7A644

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1365BEno red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#0058B9no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#007181no blue cones; rare, and affects men and women equally; ΔE 56.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.49:1WCAG large text: AAA
Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Royal blue · ΔE 13.8Slate blue · ΔE 17.5Dark slateblue · ΔE 18.1Dodgerblue · ΔE 22.8Medium purple · ΔE 23.8Cornflower blue · ΔE 25.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.76, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB8A28
Analogous#28A3BB, #4128BB
Triadic#BB2859, #59BB28
Split complementary#BB4028, #A3BB28
Tetradic#BB28A2, #BB8A28, #28BB40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BECFF1
Lighter +30%#94B0E8
Lighter +20%#6A91DF
Lighter +10%#4072D6
Darker −10%#1F4591
Darker −20%#163167
Darker −30%#0D1D3D
Darker −40%#040913
More saturated +25%#0C50D7
Less saturated −25%#44629F

Channel breakdown

R40
G89
B187
Red40 (15.7%)
Green89 (34.9%)
Blue187 (73.3%)
Hue220°
Saturation (HSL)64.76%
Lightness44.51%
Dominant channelBlue
Hex per channelR 28 · G 59 · B BB

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 “2859bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.