Colour

#424B54

#424B54
Blue
Dark
Nearest: Dark slate grey

#424B54 is a blue with RGB values 66, 75, 84 and HSL 210°, 12%, 29%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#424B54#424B54

HEX#424B54

RGBrgb(66, 75, 84)

RGB (0–1)0.2588, 0.2941, 0.3294

RGB percentages25.9%, 29.4%, 32.9%

HSLhsl(210, 12%, 29.4%)

HSV / HSBhsv(210, 21.4%, 32.9%)

CMYK21.4%, 10.7%, 0%, 67.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,344,660

CSS custom property--colour: #424B54;

Brightness & contrast

Relative luminance0.0683WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.88:1

Contrast with white8.88:1WCAG normal text: AAA

Contrast with black2.37:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#BDB4AB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#484B54no red cones; affects about 1% of men; ΔE 2.5 from the original

Deuteranopia#454954no green cones; the most common form, about 1% of men; ΔE 2.5 from the original

Tritanopia#3D4D4Eno blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.88:1WCAG large text: AAA

Contrast with black, large text2.37:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.7 Dim grey · ΔE 14.6 Slate grey · ΔE 21.8 Gray · ΔE 23.2 Light slate grey · ΔE 24.9 Black · ΔE 32.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.73, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#544B42

Analogous#425454, #424254

Triadic#54424B, #4B5442

Split complementary#544242, #545442

Tetradic#544254, #544B42, #425442

Tints, shades & saturation

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

Lighter +40%#A8B1BA

Lighter +30%#8B98A4

Lighter +20%#6F7E8D

Lighter +10%#586571

Darker −10%#2C3237

Darker −20%#15181B

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2F4B67

Less saturated −25%#4B4B4B

Channel breakdown

R66

G75

B84

Red66 (25.9%)

Green75 (29.4%)

Blue84 (32.9%)

Hue210°

Saturation (HSL)12%

Lightness29.41%

Dominant channelBlue

Hex per channelR 42 · G 4B · B 54

Keep nerding

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

#424B54

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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