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Colour

#B63D3B

  • #B63D3B
  • Red
  • Dark
  • Nearest: Brown

#B63D3B is a red with RGB values 182, 61, 59 and HSL 1°, 51%, 47%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B63D3B#B63D3B
HEX#B63D3B
RGBrgb(182, 61, 59)
RGB (0–1)0.7137, 0.2392, 0.2314
RGB percentages71.4%, 23.9%, 23.1%
HSLhsl(1, 51%, 47.3%)
HSV / HSBhsv(1, 67.6%, 71.4%)
CMYK0%, 66.5%, 67.6%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,943,227
CSS custom property--colour: #B63D3B;

Brightness & contrast

Relative luminance0.13598WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.65:1
Contrast with white5.65:1WCAG normal text: AA
Contrast with black3.72:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#49C2C4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5E573Ano red cones; affects about 1% of men; ΔE 52.3 from the original
Deuteranopia#7C7137no green cones; the most common form, about 1% of men; ΔE 53 from the original
Tritanopia#C81E3Eno blue cones; rare, and affects men and women equally; ΔE 15.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.65:1WCAG large text: AAA
Contrast with black, large text3.72:1WCAG large text: AA

Named colours

Brown · ΔE 6.6Indian red · ΔE 12.2Firebrick · ΔE 12.6Dark red · ΔE 20.3Maroon · ΔE 20.5Sienna · ΔE 20.7
Nearest named CSS colourBrown (#A52A2A)ΔE 6.57, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3BB4B6
Analogous#B63B76, #B67B3B
Triadic#3BB63D, #3D3BB6
Split complementary#3BB67B, #3B76B6
Tetradic#76B63B, #3BB4B6, #7B3BB6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFCECE
Lighter +30%#E3A8A7
Lighter +20%#D68281
Lighter +10%#CA5C5A
Darker −10%#8F302F
Darker −20%#692322
Darker −30%#421616
Darker −40%#1C0909
More saturated +25%#D4201D
Less saturated −25%#985A59

Channel breakdown

R182
G61
B59
Red182 (71.4%)
Green61 (23.9%)
Blue59 (23.1%)
Hue0.98°
Saturation (HSL)51.04%
Lightness47.25%
Dominant channelRed
Hex per channelR B6 · G 3D · B 3B

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Every value on this page was computed from “b63d3b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.