Colour

#2700A1

#2700A1
Blue
Dark
Nearest: Dark blue

#2700A1 is a blue with RGB values 39, 0, 161 and HSL 255°, 100%, 32%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2700A1#2700A1

HEX#2700A1

RGBrgb(39, 0, 161)

RGB (0–1)0.1529, 0, 0.6314

RGB percentages15.3%, 0%, 63.1%

HSLhsl(254.5, 100%, 31.6%)

HSV / HSBhsv(254.5, 100%, 63.1%)

CMYK75.8%, 100%, 0%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,556,065

CSS custom property--colour: #2700A1;

Brightness & contrast

Relative luminance0.03005WCAG 2.x, 0 is black and 1 is white

Perceived brightness58.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.12:1

Contrast with white13.12:1WCAG normal text: AAA

Contrast with black1.6:1WCAG normal text: Fail

Greyscale equivalent#141414

Inverted#D8FF5E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0037A5no red cones; affects about 1% of men; ΔE 29 from the original

Deuteranopia#00299Fno green cones; the most common form, about 1% of men; ΔE 20.8 from the original

Tritanopia#00405Dno blue cones; rare, and affects men and women equally; ΔE 81.3 from the original

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

Contrast with white, large text13.12:1WCAG large text: AAA

Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark blue · ΔE 9.5 Navy · ΔE 14.6 Indigo · ΔE 20.7 Medium blue · ΔE 21.4 Blue violet · ΔE 25.7 Dark violet · ΔE 27.8

Nearest named CSS colourDark blue (#00008B)ΔE 9.54, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7AA100

Analogous#0029A1, #7700A1

Triadic#A12700, #00A127

Split complementary#A17800, #29A100

Tetradic#A1002A, #7AA100, #00A178

Tints, shades & saturation

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

Lighter +40%#916EFF

Lighter +30%#6A3BFF

Lighter +20%#4408FF

Lighter +10%#3300D4

Darker −10%#1B006E

Darker −20%#0E003B

Darker −30%#020008

Darker −40%#000000

More saturated +25%#2700A1

Less saturated −25%#31148D

Channel breakdown

R39

B161

Red39 (15.3%)

Green0 (0%)

Blue161 (63.1%)

Hue254.53°

Saturation (HSL)100%

Lightness31.57%

Dominant channelBlue

Hex per channelR 27 · G 00 · B A1

Keep nerding

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#2700A1

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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