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Recognised as Colour

#63223B

  • #63223B
  • Red
  • Dark
  • Nearest: Dim grey

#63223B is a red with RGB values 99, 34, 59 and HSL 337°, 49%, 26%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#63223B#63223B
HEX#63223B
RGBrgb(99, 34, 59)
RGB (0–1)0.3882, 0.1333, 0.2314
RGB percentages38.8%, 13.3%, 23.1%
HSLhsl(336.9, 48.9%, 26.1%)
HSV / HSBhsv(336.9, 65.7%, 38.8%)
CMYK0%, 65.7%, 40.4%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,496,827
CSS custom property--colour: #63223B;

Brightness & contrast

Relative luminance0.04112WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.52:1
Contrast with white11.52:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#9CDDC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E313Cno red cones; affects about 1% of men; ΔE 31.3 from the original
Deuteranopia#3F3E39no green cones; the most common form, about 1% of men; ΔE 32.9 from the original
Tritanopia#6B1C2Cno blue cones; rare, and affects men and women equally; ΔE 11.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.52:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dim grey · ΔE 37.9Brown · ΔE 38.3Pale violetred · ΔE 39Indian red · ΔE 39.3Black · ΔE 40Sienna · ΔE 41.3
Nearest named CSS colourDim grey (#696969)ΔE 37.9, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#22634A
Analogous#63225C, #632922
Triadic#3B6322, #223B63
Split complementary#226329, #225C63
Tetradic#5C6322, #22634A, #292263

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D37E9F
Lighter +30%#C65882
Lighter +20%#AF3C68
Lighter +10%#892F52
Darker −10%#3D1524
Darker −20%#17080E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#741137
Less saturated −25%#52333F

Channel breakdown

R99
G34
B59
Red99 (38.8%)
Green34 (13.3%)
Blue59 (23.1%)
Hue336.92°
Saturation (HSL)48.87%
Lightness26.08%
Dominant channelRed
Hex per channelR 63 · G 22 · B 3B

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Every value on this page was computed from “63223b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.