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Recognised as Colour

#431B2B

  • #431B2B
  • Red
  • Dark
  • Nearest: Black

#431B2B is a red with RGB values 67, 27, 43 and HSL 336°, 43%, 18%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#431B2B#431B2B
HEX#431B2B
RGBrgb(67, 27, 43)
RGB (0–1)0.2627, 0.1059, 0.1686
RGB percentages26.3%, 10.6%, 16.9%
HSLhsl(336, 42.6%, 18.4%)
HSV / HSBhsv(336, 59.7%, 26.3%)
CMYK0%, 59.7%, 35.8%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,397,867
CSS custom property--colour: #431B2B;

Brightness & contrast

Relative luminance0.02152WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.68:1
Contrast with white14.68:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#BCE4D4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#21242Bno red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#2B2B2Ano green cones; the most common form, about 1% of men; ΔE 21.8 from the original
Tritanopia#481821no blue cones; rare, and affects men and women equally; ΔE 7.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.68:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Black · ΔE 26.9Dim grey · ΔE 35.4Dark slate grey · ΔE 36.4Gray · ΔE 43.1Dark slateblue · ΔE 43.4Slate grey · ΔE 44.4
Nearest named CSS colourBlack (#000000)ΔE 26.93, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B4333
Analogous#431B3F, #431F1B
Triadic#2B431B, #1B2B43
Split complementary#1B431F, #1B3F43
Tetradic#3F431B, #1B4333, #1F1B43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2688C
Lighter +30%#B04771
Lighter +20%#8C385A
Lighter +10%#672A42
Darker −10%#1F0C14
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4F0F29
Less saturated −25%#37272D

Channel breakdown

R67
G27
B43
Red67 (26.3%)
Green27 (10.6%)
Blue43 (16.9%)
Hue336°
Saturation (HSL)42.55%
Lightness18.43%
Dominant channelRed
Hex per channelR 43 · G 1B · B 2B

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Every value on this page was computed from “431b2b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.