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Recognised as Colour

#421F2E

  • #421F2E
  • Red
  • Dark
  • Nearest: Black

#421F2E is a red with RGB values 66, 31, 46 and HSL 334°, 36%, 19%. It is a dark colour, so white text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#421F2E#421F2E
HEX#421F2E
RGBrgb(66, 31, 46)
RGB (0–1)0.2588, 0.1216, 0.1804
RGB percentages25.9%, 12.2%, 18%
HSLhsl(334.3, 36.1%, 19%)
HSV / HSBhsv(334.3, 53%, 25.9%)
CMYK0%, 53%, 30.3%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,333,358
CSS custom property--colour: #421F2E;

Brightness & contrast

Relative luminance0.02335WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.31:1
Contrast with white14.31:1WCAG normal text: AAA
Contrast with black1.47:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#BDE0D1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#23262Fno red cones; affects about 1% of men; ΔE 18.5 from the original
Deuteranopia#2C2D2Dno green cones; the most common form, about 1% of men; ΔE 19.6 from the original
Tritanopia#471D24no blue cones; rare, and affects men and women equally; ΔE 7.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.31:1WCAG large text: AAA
Contrast with black, large text1.47:1WCAG large text: Fail

Named colours

Black · ΔE 25.7Dim grey · ΔE 33.3Dark slate grey · ΔE 33.9Gray · ΔE 41.2Slate grey · ΔE 42.3Dark slateblue · ΔE 42.6
Nearest named CSS colourBlack (#000000)ΔE 25.73, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F4233
Analogous#421F40, #42221F
Triadic#2E421F, #1F2E42
Split complementary#1F4222, #1F4042
Tetradic#40421F, #1F4233, #211F42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BC7191
Lighter +30%#AA5077
Lighter +20%#87405E
Lighter +10%#652F46
Darker −10%#1F0F16
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4E132C
Less saturated −25%#362B30

Channel breakdown

R66
G31
B46
Red66 (25.9%)
Green31 (12.2%)
Blue46 (18%)
Hue334.29°
Saturation (HSL)36.08%
Lightness19.02%
Dominant channelRed
Hex per channelR 42 · G 1F · B 2E

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Every value on this page was computed from “421f2e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.