Recognised as Colour

#2191D4

#2191D4
Blue
Dark
Nearest: Steel blue

#2191D4 is a blue with RGB values 33, 145, 212 and HSL 202°, 73%, 48%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2191D4#2191D4

HEX#2191D4

RGBrgb(33, 145, 212)

RGB (0–1)0.1294, 0.5686, 0.8314

RGB percentages12.9%, 56.9%, 83.1%

HSLhsl(202.5, 73.1%, 48%)

HSV / HSBhsv(202.5, 84.4%, 83.1%)

CMYK84.4%, 31.6%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,200,020

CSS custom property--colour: #2191D4;

Brightness & contrast

Relative luminance0.25328WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.07:1

Contrast with white3.46:1WCAG normal text: Fail

Contrast with black6.07:1WCAG normal text: AA

Greyscale equivalent#7E7E7E

Inverted#DE6E2B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7193D7no red cones; affects about 1% of men; ΔE 14.1 from the original

Deuteranopia#5983D3no green cones; the most common form, about 1% of men; ΔE 16.2 from the original

Tritanopia#00A2A9no blue cones; rare, and affects men and women equally; ΔE 38.8 from the original

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

Contrast with white, large text3.46:1WCAG large text: AA

Contrast with black, large text6.07:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.8 Cornflower blue · ΔE 17.7 Deep skyblue · ΔE 18.9 Dodgerblue · ΔE 26.5 Light skyblue · ΔE 26.8 Sky blue · ΔE 31.7

Nearest named CSS colourSteel blue (#4682B4)ΔE 11.84, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D46421

Analogous#21D4BE, #2137D4

Triadic#D42191, #91D421

Split complementary#D42138, #D4BE21

Tetradic#BD21D4, #D46421, #37D421

Tints, shades & saturation

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

Lighter +40%#CAE6F7

Lighter +30%#9ED1F0

Lighter +20%#72BCE9

Lighter +10%#46A8E2

Darker −10%#1A73A8

Darker −20%#13557C

Darker −30%#0C3650

Darker −40%#061823

More saturated +25%#0299F3

Less saturated −25%#4089B5

Channel breakdown

R33

G145

B212

Red33 (12.9%)

Green145 (56.9%)

Blue212 (83.1%)

Hue202.46°

Saturation (HSL)73.06%

Lightness48.04%

Dominant channelBlue

Hex per channelR 21 · G 91 · B D4

Keep nerding

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

#2191D4

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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