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Colour

#2304BB

  • #2304BB
  • Blue
  • Dark
  • Nearest: Medium blue

#2304BB is a blue with RGB values 35, 4, 187 and HSL 250°, 96%, 37%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2304BB#2304BB
HEX#2304BB
RGBrgb(35, 4, 187)
RGB (0–1)0.1373, 0.0157, 0.7333
RGB percentages13.7%, 1.6%, 73.3%
HSLhsl(250.2, 95.8%, 37.5%)
HSV / HSBhsv(250.2, 97.9%, 73.3%)
CMYK81.3%, 97.9%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,294,971
CSS custom property--colour: #2304BB;

Brightness & contrast

Relative luminance0.04032WCAG 2.x, 0 is black and 1 is white
Perceived brightness66 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.63:1
Contrast with white11.63:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#DCFB44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0041BFno red cones; affects about 1% of men; ΔE 31.9 from the original
Deuteranopia#0030B8no green cones; the most common form, about 1% of men; ΔE 22.1 from the original
Tritanopia#004C6Dno blue cones; rare, and affects men and women equally; ΔE 90.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.63:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10Dark blue · ΔE 20.6Blue violet · ΔE 21.5Dark violet · ΔE 24.6Navy · ΔE 25.8Dark orchid · ΔE 30.2
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9CBB04
Analogous#0441BB, #7E04BB
Triadic#BB2304, #04BB23
Split complementary#BB7E04, #41BB04
Tetradic#BB0441, #9CBB04, #04BB7E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A18EFD
Lighter +30%#775CFC
Lighter +20%#4E2BFA
Lighter +10%#2C05ED
Darker −10%#1A0389
Darker −20%#100257
Darker −30%#070125
Darker −40%#000000
More saturated +25%#2000BF
Less saturated −25%#331CA3

Channel breakdown

R35
G4
B187
Red35 (13.7%)
Green4 (1.6%)
Blue187 (73.3%)
Hue250.16°
Saturation (HSL)95.81%
Lightness37.45%
Dominant channelBlue
Hex per channelR 23 · G 04 · B BB

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Every value on this page was computed from “2304bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.