Recognised as Colour

#424B63

#424B63
Blue
Dark
Nearest: Dark slate grey

#424B63 is a blue with RGB values 66, 75, 99 and HSL 224°, 20%, 32%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#424B63#424B63

HEX#424B63

RGBrgb(66, 75, 99)

RGB (0–1)0.2588, 0.2941, 0.3882

RGB percentages25.9%, 29.4%, 38.8%

HSLhsl(223.6, 20%, 32.4%)

HSV / HSBhsv(223.6, 33.3%, 38.8%)

CMYK33.3%, 24.2%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,344,675

CSS custom property--colour: #424B63;

Brightness & contrast

Relative luminance0.07091WCAG 2.x, 0 is black and 1 is white

Perceived brightness75.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.68:1

Contrast with white8.68:1WCAG normal text: AAA

Contrast with black2.42:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#BDB49C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#434D64no red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#414A62no green cones; the most common form, about 1% of men; ΔE 0.4 from the original

Tritanopia#395053no blue cones; rare, and affects men and women equally; ΔE 15.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.68:1WCAG large text: AAA

Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.5 Dim grey · ΔE 19.8 Slate grey · ΔE 21.9 Light slate grey · ΔE 24.8 Gray · ΔE 26.5 Steel blue · ΔE 27.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.5, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#635A42

Analogous#425B63, #4A4263

Triadic#63424B, #4B6342

Split complementary#634942, #5B6342

Tetradic#63425B, #635A42, #426349

Tints, shades & saturation

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

Lighter +40%#AAB2C7

Lighter +30%#8C96B2

Lighter +20%#6D7A9E

Lighter +10%#566282

Darker −10%#2E3444

Darker −20%#191D26

Darker −30%#050507

Darker −40%#000000

More saturated +25%#2D4278

Less saturated −25%#525252

Channel breakdown

R66

G75

B99

Red66 (25.9%)

Green75 (29.4%)

Blue99 (38.8%)

Hue223.64°

Saturation (HSL)20%

Lightness32.35%

Dominant channelBlue

Hex per channelR 42 · G 4B · B 63

Keep nerding

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

#424B63

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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