Recognised as Colour

#2104A8

#2104A8
Blue
Dark
Nearest: Dark blue

#2104A8 is a blue with RGB values 33, 4, 168 and HSL 251°, 95%, 34%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2104A8#2104A8

HEX#2104A8

RGBrgb(33, 4, 168)

RGB (0–1)0.1294, 0.0157, 0.6588

RGB percentages12.9%, 1.6%, 65.9%

HSLhsl(250.6, 95.3%, 33.7%)

HSV / HSBhsv(250.6, 97.6%, 65.9%)

CMYK80.4%, 97.6%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,163,880

CSS custom property--colour: #2104A8;

Brightness & contrast

Relative luminance0.03237WCAG 2.x, 0 is black and 1 is white

Perceived brightness59.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.75:1

Contrast with white12.75:1WCAG normal text: AAA

Contrast with black1.65:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#DEFB57

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0039ACno red cones; affects about 1% of men; ΔE 28.5 from the original

Deuteranopia#002AA6no green cones; the most common form, about 1% of men; ΔE 19.6 from the original

Tritanopia#004461no blue cones; rare, and affects men and women equally; ΔE 84.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text12.75:1WCAG large text: AAA

Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark blue · ΔE 11.9 Navy · ΔE 17.1 Medium blue · ΔE 18.7 Indigo · ΔE 23.5 Blue violet · ΔE 24.7 Dark violet · ΔE 27.2

Nearest named CSS colourDark blue (#00008B)ΔE 11.93, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#8BA804

Analogous#0439A8, #7304A8

Triadic#A82104, #04A821

Split complementary#A87304, #39A804

Tetradic#A80439, #8BA804, #04A873

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#937CFC

Lighter +30%#694AFB

Lighter +20%#4018FA

Lighter +10%#2B05DA

Darker −10%#170376

Darker −20%#0D0244

Darker −30%#040013

Darker −40%#000000

More saturated +25%#1E00AC

Less saturated −25%#2F1A93

Channel breakdown

R33

B168

Red33 (12.9%)

Green4 (1.6%)

Blue168 (65.9%)

Hue250.61°

Saturation (HSL)95.35%

Lightness33.73%

Dominant channelBlue

Hex per channelR 21 · G 04 · B A8

Keep nerding

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#2104A8

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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