Recognised as Colour

#37588F

#37588F
Blue
Dark
Nearest: Steel blue

#37588F is a blue with RGB values 55, 88, 143 and HSL 218°, 44%, 39%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#37588F#37588F

HEX#37588F

RGBrgb(55, 88, 143)

RGB (0–1)0.2157, 0.3451, 0.5608

RGB percentages21.6%, 34.5%, 56.1%

HSLhsl(217.5, 44.4%, 38.8%)

HSV / HSBhsv(217.5, 61.5%, 56.1%)

CMYK61.5%, 38.5%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,627,151

CSS custom property--colour: #37588F;

Brightness & contrast

Relative luminance0.09775WCAG 2.x, 0 is black and 1 is white

Perceived brightness88.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.11:1

Contrast with white7.11:1WCAG normal text: AAA

Contrast with black2.95:1WCAG normal text: Fail

Greyscale equivalent#555555

Inverted#C8A770

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#415D91no red cones; affects about 1% of men; ΔE 3.1 from the original

Deuteranopia#35548Eno green cones; the most common form, about 1% of men; ΔE 2.7 from the original

Tritanopia#00646Cno blue cones; rare, and affects men and women equally; ΔE 35.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text7.11:1WCAG large text: AAA

Contrast with black, large text2.95:1WCAG large text: Fail

Named colours

Steel blue · ΔE 18.1 Dark slateblue · ΔE 22.7 Cornflower blue · ΔE 29.1 Slate grey · ΔE 29.2 Light slate grey · ΔE 30.6 Dim grey · ΔE 35.3

Nearest named CSS colourSteel blue (#4682B4)ΔE 18.13, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8F6E37

Analogous#37848F, #42378F

Triadic#8F3758, #588F37

Split complementary#8F4237, #848F37

Tetradic#8F3784, #8F6E37, #378F42

Tints, shades & saturation

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

Lighter +40%#B1C3E1

Lighter +30%#8CA7D3

Lighter +20%#678AC5

Lighter +10%#456FB4

Darker −10%#29416A

Darker −20%#1B2B45

Darker −30%#0D1421

Darker −40%#000000

More saturated +25%#1E52A8

Less saturated −25%#505E76

Channel breakdown

R55

G88

B143

Red55 (21.6%)

Green88 (34.5%)

Blue143 (56.1%)

Hue217.5°

Saturation (HSL)44.44%

Lightness38.82%

Dominant channelBlue

Hex per channelR 37 · G 58 · B 8F

Keep nerding

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

#37588F

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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