Colour

#2156BF

#2156BF
Blue
Dark
Nearest: Royal blue

#2156BF is a blue with RGB values 33, 86, 191 and HSL 220°, 71%, 44%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2156BF#2156BF

HEX#2156BF

RGBrgb(33, 86, 191)

RGB (0–1)0.1294, 0.3373, 0.749

RGB percentages12.9%, 33.7%, 74.9%

HSLhsl(219.9, 70.5%, 43.9%)

HSV / HSBhsv(219.9, 82.7%, 74.9%)

CMYK82.7%, 55%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,184,895

CSS custom property--colour: #2156BF;

Brightness & contrast

Relative luminance0.1074WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.67:1

Contrast with white6.67:1WCAG normal text: AA

Contrast with black3.15:1WCAG normal text: Fail

Greyscale equivalent#525252

Inverted#DEA940

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0064C3no red cones; affects about 1% of men; ΔE 10.7 from the original

Deuteranopia#0055BDno green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#007082no blue cones; rare, and affects men and women equally; ΔE 59.9 from the original

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

Contrast with white, large text6.67:1WCAG large text: AAA

Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Royal blue · ΔE 11 Slate blue · ΔE 15.2 Dark slateblue · ΔE 20 Medium slateblue · ΔE 23.5 Medium purple · ΔE 23.6 Dodgerblue · ΔE 24

Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.96, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BF8A21

Analogous#21A5BF, #3B21BF

Triadic#BF2156, #56BF21

Split complementary#BF3B21, #A5BF21

Tetradic#BF21A5, #BF8A21, #21BF3B

Tints, shades & saturation

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

Lighter +40%#B9CCF3

Lighter +30%#8EADEB

Lighter +20%#628EE4

Lighter +10%#376EDC

Darker −10%#194294

Darker −20%#122F68

Darker −30%#0A1B3D

Darker −40%#030811

More saturated +25%#054DDB

Less saturated −25%#3D5FA3

Channel breakdown

R33

G86

B191

Red33 (12.9%)

Green86 (33.7%)

Blue191 (74.9%)

Hue219.87°

Saturation (HSL)70.54%

Lightness43.92%

Dominant channelBlue

Hex per channelR 21 · G 56 · B BF

Keep nerding

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

#2156BF

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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