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Recognised as Colour

#63728E

  • #63728E
  • Blue
  • Dark
  • Nearest: Slate grey

#63728E is a blue with RGB values 99, 114, 142 and HSL 219°, 18%, 47%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#63728E#63728E
HEX#63728E
RGBrgb(99, 114, 142)
RGB (0–1)0.3882, 0.4471, 0.5569
RGB percentages38.8%, 44.7%, 55.7%
HSLhsl(219.1, 17.8%, 47.3%)
HSV / HSBhsv(219.1, 30.3%, 55.7%)
CMYK30.3%, 19.7%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,517,390
CSS custom property--colour: #63728E;

Brightness & contrast

Relative luminance0.1664WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.85:1
Contrast with white4.85:1WCAG normal text: AA
Contrast with black4.33:1WCAG normal text: Fail
Greyscale equivalent#717171
Inverted#9C8D71

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#69748Fno red cones; affects about 1% of men; ΔE 1.8 from the original
Deuteranopia#65708Dno green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#57787Bno blue cones; rare, and affects men and women equally; ΔE 16.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.85:1WCAG large text: AAA
Contrast with black, large text4.33:1WCAG large text: AA

Named colours

Slate grey · ΔE 8.9Light slate grey · ΔE 10.7Steel blue · ΔE 16.7Dim grey · ΔE 17.5Gray · ΔE 18.1Dark slate grey · ΔE 25
Nearest named CSS colourSlate grey (#708090)ΔE 8.95, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E7F63
Analogous#63888E, #69638E
Triadic#8E6372, #728E63
Split complementary#8E6963, #888E63
Tetradic#8E6388, #8E7F63, #638E69

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9DDE4
Lighter +30%#BBC2CF
Lighter +20%#9DA7BA
Lighter +10%#7F8CA5
Darker −10%#4E5A70
Darker −20%#394252
Darker −30%#242A34
Darker −40%#0F1216
More saturated +25%#4569AC
Less saturated −25%#787878

Channel breakdown

R99
G114
B142
Red99 (38.8%)
Green114 (44.7%)
Blue142 (55.7%)
Hue219.07°
Saturation (HSL)17.84%
Lightness47.25%
Dominant channelBlue
Hex per channelR 63 · G 72 · B 8E

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Every value on this page was computed from “63728e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.