Colour

#273CB4

#273CB4
Blue
Dark
Nearest: Slate blue

#273CB4 is a blue with RGB values 39, 60, 180 and HSL 231°, 64%, 43%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#273CB4#273CB4

HEX#273CB4

RGBrgb(39, 60, 180)

RGB (0–1)0.1529, 0.2353, 0.7059

RGB percentages15.3%, 23.5%, 70.6%

HSLhsl(231.1, 64.4%, 42.9%)

HSV / HSBhsv(231.1, 78.3%, 70.6%)

CMYK78.3%, 66.7%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,571,444

CSS custom property--colour: #273CB4;

Brightness & contrast

Relative luminance0.06958WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.78:1

Contrast with white8.78:1WCAG normal text: AAA

Contrast with black2.39:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#D8C34B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0051B8no red cones; affects about 1% of men; ΔE 16.4 from the original

Deuteranopia#0044B2no green cones; the most common form, about 1% of men; ΔE 8.7 from the original

Tritanopia#005C73no blue cones; rare, and affects men and women equally; ΔE 68.1 from the original

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

Contrast with white, large text8.78:1WCAG large text: AAA

Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Slate blue · ΔE 15.7 Royal blue · ΔE 18.7 Rebecca purple · ΔE 19.8 Medium slateblue · ΔE 21.1 Navy · ΔE 22.2 Dark blue · ΔE 22.7

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 15.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B49F27

Analogous#2783B4, #5827B4

Triadic#B4273C, #3CB427

Split complementary#B45827, #83B427

Tetradic#B42783, #B49F27, #27B458

Tints, shades & saturation

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

Lighter +40%#B7C0F0

Lighter +30%#8E9BE6

Lighter +20%#6476DD

Lighter +10%#3A51D4

Darker −10%#1E2E8A

Darker −20%#152060

Darker −30%#0C1236

Darker −40%#03040C

More saturated +25%#0C29CF

Less saturated −25%#424F99

Channel breakdown

R39

G60

B180

Red39 (15.3%)

Green60 (23.5%)

Blue180 (70.6%)

Hue231.06°

Saturation (HSL)64.38%

Lightness42.94%

Dominant channelBlue

Hex per channelR 27 · G 3C · B B4

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#273CB4

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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