Colour

#227FBB

#227FBB
Blue
Dark
Nearest: Steel blue

#227FBB is a blue with RGB values 34, 127, 187 and HSL 204°, 69%, 43%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#227FBB#227FBB

HEX#227FBB

RGBrgb(34, 127, 187)

RGB (0–1)0.1333, 0.498, 0.7333

RGB percentages13.3%, 49.8%, 73.3%

HSLhsl(203.5, 69.2%, 43.3%)

HSV / HSBhsv(203.5, 81.8%, 73.3%)

CMYK81.8%, 32.1%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,260,923

CSS custom property--colour: #227FBB;

Brightness & contrast

Relative luminance0.19107WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.82:1

Contrast with white4.36:1WCAG normal text: Fail

Contrast with black4.82:1WCAG normal text: AA

Greyscale equivalent#707070

Inverted#DD8044

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6381BEno red cones; affects about 1% of men; ΔE 12.3 from the original

Deuteranopia#4E73BAno green cones; the most common form, about 1% of men; ΔE 14 from the original

Tritanopia#008E94no blue cones; rare, and affects men and women equally; ΔE 36 from the original

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

Contrast with white, large text4.36:1WCAG large text: AA

Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Steel blue · ΔE 7 Cornflower blue · ΔE 21 Deep skyblue · ΔE 25.4 Light slate grey · ΔE 28.4 Slate grey · ΔE 28.5 Dodgerblue · ΔE 30

Nearest named CSS colourSteel blue (#4682B4)ΔE 6.97, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BB5E22

Analogous#22BBAA, #2233BB

Triadic#BB227F, #7FBB22

Split complementary#BB2233, #BBAA22

Tetradic#AA22BB, #BB5E22, #33BB22

Tints, shades & saturation

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

Lighter +40%#B7DBF2

Lighter +30%#8CC5EA

Lighter +20%#61AFE2

Lighter +10%#369ADA

Darker −10%#1A6290

Darker −20%#124465

Darker −30%#0A273A

Darker −40%#030A0E

More saturated +25%#0685D7

Less saturated −25%#3E799F

Channel breakdown

R34

G127

B187

Red34 (13.3%)

Green127 (49.8%)

Blue187 (73.3%)

Hue203.53°

Saturation (HSL)69.23%

Lightness43.33%

Dominant channelBlue

Hex per channelR 22 · G 7F · B BB

Keep nerding

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

#227FBB

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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