Colour

#37558E

#37558E
Blue
Dark
Nearest: Steel blue

#37558E is a blue with RGB values 55, 85, 142 and HSL 219°, 44%, 39%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#37558E#37558E

HEX#37558E

RGBrgb(55, 85, 142)

RGB (0–1)0.2157, 0.3333, 0.5569

RGB percentages21.6%, 33.3%, 55.7%

HSLhsl(219.3, 44.2%, 38.6%)

HSV / HSBhsv(219.3, 61.3%, 55.7%)

CMYK61.3%, 40.1%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,626,382

CSS custom property--colour: #37558E;

Brightness & contrast

Relative luminance0.09262WCAG 2.x, 0 is black and 1 is white

Perceived brightness86.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.36:1

Contrast with white7.36:1WCAG normal text: AAA

Contrast with black2.85:1WCAG normal text: Fail

Greyscale equivalent#535353

Inverted#C8AA71

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D5A90no red cones; affects about 1% of men; ΔE 2.9 from the original

Deuteranopia#31528Dno green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#00626Ano blue cones; rare, and affects men and women equally; ΔE 36.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text7.36:1WCAG large text: AAA

Contrast with black, large text2.85:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19.9 Dark slateblue · ΔE 20.7 Cornflower blue · ΔE 29.3 Slate grey · ΔE 30.9 Light slate grey · ΔE 32.3 Midnight blue · ΔE 35

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.91, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8E7037

Analogous#37808E, #45378E

Triadic#8E3755, #558E37

Split complementary#8E4537, #818E37

Tetradic#8E3780, #8E7037, #378E45

Tints, shades & saturation

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

Lighter +40%#B0C1E1

Lighter +30%#8CA4D2

Lighter +20%#6787C4

Lighter +10%#456BB3

Darker −10%#293F69

Darker −20%#1B2944

Darker −30%#0C1320

Darker −40%#000000

More saturated +25%#1E4DA7

Less saturated −25%#505D75

Channel breakdown

R55

G85

B142

Red55 (21.6%)

Green85 (33.3%)

Blue142 (55.7%)

Hue219.31°

Saturation (HSL)44.16%

Lightness38.63%

Dominant channelBlue

Hex per channelR 37 · G 55 · B 8E

Keep nerding

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#37558E

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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