Recognised as Colour

#383B57

#383B57
Blue
Dark
Nearest: Dark slate grey

#383B57 is a blue with RGB values 56, 59, 87 and HSL 234°, 22%, 28%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#383B57#383B57

HEX#383B57

RGBrgb(56, 59, 87)

RGB (0–1)0.2196, 0.2314, 0.3412

RGB percentages22%, 23.1%, 34.1%

HSLhsl(234.2, 21.7%, 28%)

HSV / HSBhsv(234.2, 35.6%, 34.1%)

CMYK35.6%, 32.2%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,685,207

CSS custom property--colour: #383B57;

Brightness & contrast

Relative luminance0.04657WCAG 2.x, 0 is black and 1 is white

Perceived brightness62 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.87:1

Contrast with white10.87:1WCAG normal text: AAA

Contrast with black1.93:1WCAG normal text: Fail

Greyscale equivalent#3C3C3C

Inverted#C7C4A8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#333E58no red cones; affects about 1% of men; ΔE 3.4 from the original

Deuteranopia#313C56no green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#304045no blue cones; rare, and affects men and women equally; ΔE 16.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.87:1WCAG large text: AAA

Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.3 Dim grey · ΔE 26.2 Slate grey · ΔE 29.2 Black · ΔE 31.6 Light slate grey · ΔE 32 Dark slateblue · ΔE 32.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.26, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#575438

Analogous#384A57, #453857

Triadic#57383B, #3B5738

Split complementary#574538, #4B5738

Tetradic#57384A, #575438, #385745

Tints, shades & saturation

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

Lighter +40%#9C9FBF

Lighter +30%#7D81AB

Lighter +20%#606595

Lighter +10%#4C5076

Darker −10%#242638

Darker −20%#101119

Darker −30%#000000

Darker −40%#000000

More saturated +25%#262D69

Less saturated −25%#484848

Channel breakdown

R56

G59

B87

Red56 (22%)

Green59 (23.1%)

Blue87 (34.1%)

Hue234.19°

Saturation (HSL)21.68%

Lightness28.04%

Dominant channelBlue

Hex per channelR 38 · G 3B · B 57

Keep nerding

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

#383B57

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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