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Recognised as Colour

#454F63

  • #454F63
  • Blue
  • Dark
  • Nearest: Dark slate grey

#454F63 is a blue with RGB values 69, 79, 99 and HSL 220°, 18%, 33%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#454F63#454F63
HEX#454F63
RGBrgb(69, 79, 99)
RGB (0–1)0.2706, 0.3098, 0.3882
RGB percentages27.1%, 31%, 38.8%
HSLhsl(220, 17.9%, 32.9%)
HSV / HSBhsv(220, 30.3%, 38.8%)
CMYK30.3%, 20.2%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,542,307
CSS custom property--colour: #454F63;

Brightness & contrast

Relative luminance0.07758WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.23:1
Contrast with white8.23:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#BAB09C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#495064no red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#464D63no green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#3D5356no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.23:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16Dim grey · ΔE 17Slate grey · ΔE 19.8Light slate grey · ΔE 22.8Gray · ΔE 23.9Steel blue · ΔE 27.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#635945
Analogous#455E63, #4A4563
Triadic#63454F, #4F6345
Split complementary#634A45, #5E6345
Tetradic#63455E, #635945, #45634A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEB6C6
Lighter +30%#909BB1
Lighter +20%#72809C
Lighter +10%#5A6781
Darker −10%#303745
Darker −20%#1B1F27
Darker −30%#060709
Darker −40%#000000
More saturated +25%#304878
Less saturated −25%#545454

Channel breakdown

R69
G79
B99
Red69 (27.1%)
Green79 (31%)
Blue99 (38.8%)
Hue220°
Saturation (HSL)17.86%
Lightness32.94%
Dominant channelBlue
Hex per channelR 45 · G 4F · B 63

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Every value on this page was computed from “454f63” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.