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Recognised as Colour

#63504E

  • #63504E
  • Red
  • Dark
  • Nearest: Dim grey

#63504E is a red with RGB values 99, 80, 78 and HSL 6°, 12%, 35%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#63504E#63504E
HEX#63504E
RGBrgb(99, 80, 78)
RGB (0–1)0.3882, 0.3137, 0.3059
RGB percentages38.8%, 31.4%, 30.6%
HSLhsl(5.7, 11.9%, 34.7%)
HSV / HSBhsv(5.7, 21.2%, 38.8%)
CMYK0%, 19.2%, 21.2%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,508,622
CSS custom property--colour: #63504E;

Brightness & contrast

Relative luminance0.0894WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.53:1
Contrast with white7.53:1WCAG normal text: AAA
Contrast with black2.79:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#9CAFB1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#54524Eno red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#58564Eno green cones; the most common form, about 1% of men; ΔE 8.4 from the original
Tritanopia#674E50no blue cones; rare, and affects men and women equally; ΔE 3.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.53:1WCAG large text: AAA
Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Dim grey · ΔE 12.1Gray · ΔE 19.7Dark slate grey · ΔE 21.3Slate grey · ΔE 24.5Light slate grey · ΔE 27Rosy brown · ΔE 29.4
Nearest named CSS colourDim grey (#696969)ΔE 12.15, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E6163
Analogous#634E57, #635A4E
Triadic#4E6350, #504E63
Split complementary#4E635A, #4E5763
Tetradic#57634E, #4E6163, #5B4E63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6B8B7
Lighter +30%#B09C9A
Lighter +20%#99807E
Lighter +10%#806764
Darker −10%#463938
Darker −20%#2A2221
Darker −30%#0D0B0B
Darker −40%#000000
More saturated +25%#793E38
Less saturated −25%#595959

Channel breakdown

R99
G80
B78
Red99 (38.8%)
Green80 (31.4%)
Blue78 (30.6%)
Hue5.71°
Saturation (HSL)11.86%
Lightness34.71%
Dominant channelRed
Hex per channelR 63 · G 50 · B 4E

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Every value on this page was computed from “63504e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.