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Recognised as Colour

#3F1C24

  • #3F1C24
  • Red
  • Dark
  • Nearest: Black

#3F1C24 is a red with RGB values 63, 28, 36 and HSL 346°, 38%, 18%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3F1C24#3F1C24
HEX#3F1C24
RGBrgb(63, 28, 36)
RGB (0–1)0.2471, 0.1098, 0.1412
RGB percentages24.7%, 11%, 14.1%
HSLhsl(346.3, 38.5%, 17.8%)
HSV / HSBhsv(346.3, 55.6%, 24.7%)
CMYK0%, 55.6%, 42.9%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,135,972
CSS custom property--colour: #3F1C24;

Brightness & contrast

Relative luminance0.02015WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.97:1
Contrast with white14.97:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#C0E3DB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#222324no red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#2B2923no green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#44191Fno blue cones; rare, and affects men and women equally; ΔE 5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.97:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Black · ΔE 24Dim grey · ΔE 34.1Dark slate grey · ΔE 34.2Gray · ΔE 42.2Slate grey · ΔE 44.4Sienna · ΔE 45
Nearest named CSS colourBlack (#000000)ΔE 23.97, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C3F37
Analogous#3F1C36, #3F251C
Triadic#243F1C, #1C243F
Split complementary#1C3F25, #1C363F
Tetradic#363F1C, #1C3F37, #251C3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BD6A7D
Lighter +30%#A94B61
Lighter +20%#863B4C
Lighter +10%#622C38
Darker −10%#1C0C10
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4A111E
Less saturated −25%#34272A

Channel breakdown

R63
G28
B36
Red63 (24.7%)
Green28 (11%)
Blue36 (14.1%)
Hue346.29°
Saturation (HSL)38.46%
Lightness17.84%
Dominant channelRed
Hex per channelR 3F · G 1C · B 24

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Every value on this page was computed from “3f1c24” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.