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Recognised as Colour

#424B68

  • #424B68
  • Blue
  • Dark
  • Nearest: Dark slate grey

#424B68 is a blue with RGB values 66, 75, 104 and HSL 226°, 22%, 33%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#424B68#424B68
HEX#424B68
RGBrgb(66, 75, 104)
RGB (0–1)0.2588, 0.2941, 0.4078
RGB percentages25.9%, 29.4%, 40.8%
HSLhsl(225.8, 22.4%, 33.3%)
HSV / HSBhsv(225.8, 36.5%, 40.8%)
CMYK36.5%, 27.9%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,344,680
CSS custom property--colour: #424B68;

Brightness & contrast

Relative luminance0.0719WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.61:1
Contrast with white8.61:1WCAG normal text: AAA
Contrast with black2.44:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#BDB497

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#424E69no red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#3F4A67no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#375155no blue cones; rare, and affects men and women equally; ΔE 18 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.61:1WCAG large text: AAA
Contrast with black, large text2.44:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.5Dim grey · ΔE 22.2Slate grey · ΔE 22.8Light slate grey · ΔE 25.5Steel blue · ΔE 26.1Gray · ΔE 28.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#685F42
Analogous#425E68, #4C4268
Triadic#68424B, #4B6842
Split complementary#684C42, #5E6842
Tetradic#68425E, #685F42, #42684C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACB3CA
Lighter +30%#8D97B6
Lighter +20%#6D7AA3
Lighter +10%#566287
Darker −10%#2E3549
Darker −20%#1A1E2A
Darker −30%#07080A
Darker −40%#000000
More saturated +25%#2D407D
Less saturated −25%#555555

Channel breakdown

R66
G75
B104
Red66 (25.9%)
Green75 (29.4%)
Blue104 (40.8%)
Hue225.79°
Saturation (HSL)22.35%
Lightness33.33%
Dominant channelBlue
Hex per channelR 42 · G 4B · B 68

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Every value on this page was computed from “424b68” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.