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Recognised as Colour

#431D25

  • #431D25
  • Red
  • Dark
  • Nearest: Black

#431D25 is a red with RGB values 67, 29, 37 and HSL 347°, 40%, 19%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#431D25#431D25
HEX#431D25
RGBrgb(67, 29, 37)
RGB (0–1)0.2627, 0.1137, 0.1451
RGB percentages26.3%, 11.4%, 14.5%
HSLhsl(347.4, 39.6%, 18.8%)
HSV / HSBhsv(347.4, 56.7%, 26.3%)
CMYK0%, 56.7%, 44.8%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,398,373
CSS custom property--colour: #431D25;

Brightness & contrast

Relative luminance0.02206WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.57:1
Contrast with white14.57:1WCAG normal text: AAA
Contrast with black1.44:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#BCE2DA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#242425no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#2E2C24no green cones; the most common form, about 1% of men; ΔE 20.3 from the original
Tritanopia#491920no blue cones; rare, and affects men and women equally; ΔE 5.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.57:1WCAG large text: AAA
Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Black · ΔE 25.6Dim grey · ΔE 34.1Dark slate grey · ΔE 35Gray · ΔE 41.9Sienna · ΔE 43.5Saddle brown · ΔE 43.8
Nearest named CSS colourBlack (#000000)ΔE 25.63, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D433B
Analogous#431D38, #43281D
Triadic#25431D, #1D2543
Split complementary#1D4328, #1D3843
Tetradic#38431D, #1D433B, #281D43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C06C7E
Lighter +30%#AE4B60
Lighter +20%#8A3C4C
Lighter +10%#672C39
Darker −10%#1F0E11
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4F111E
Less saturated −25%#37292C

Channel breakdown

R67
G29
B37
Red67 (26.3%)
Green29 (11.4%)
Blue37 (14.5%)
Hue347.37°
Saturation (HSL)39.58%
Lightness18.82%
Dominant channelRed
Hex per channelR 43 · G 1D · B 25

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Every value on this page was computed from “431d25” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.