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Colour

#28141D

  • #28141D
  • Red
  • Dark
  • Nearest: Black

#28141D is a red with RGB values 40, 20, 29 and HSL 333°, 33%, 12%. It is a dark colour, so white text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28141D#28141D
HEX#28141D
RGBrgb(40, 20, 29)
RGB (0–1)0.1569, 0.0784, 0.1137
RGB percentages15.7%, 7.8%, 11.4%
HSLhsl(333, 33.3%, 11.8%)
HSV / HSBhsv(333, 50%, 15.7%)
CMYK0%, 50%, 27.5%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,626,589
CSS custom property--colour: #28141D;

Brightness & contrast

Relative luminance0.0104WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.38:1
Contrast with white17.38:1WCAG normal text: AAA
Contrast with black1.21:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#D7EBE2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#16181Dno red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#1B1B1Dno green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#2B1317no blue cones; rare, and affects men and women equally; ΔE 4.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.38:1WCAG large text: AAA
Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Black · ΔE 15.2Dark slate grey · ΔE 32.2Dim grey · ΔE 37.1Gray · ΔE 45.9Slate grey · ΔE 46.5Dark slateblue · ΔE 47.7
Nearest named CSS colourBlack (#000000)ΔE 15.21, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#14281F
Analogous#281427, #281514
Triadic#1D2814, #141D28
Split complementary#142815, #142728
Tetradic#272814, #14281F, #151428

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AD5B80
Lighter +30%#8E4767
Lighter +20%#6C364E
Lighter +10%#4A2536
Darker −10%#060304
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F0D1C
Less saturated −25%#211B1E

Channel breakdown

R40
G20
B29
Red40 (15.7%)
Green20 (7.8%)
Blue29 (11.4%)
Hue333°
Saturation (HSL)33.33%
Lightness11.76%
Dominant channelRed
Hex per channelR 28 · G 14 · B 1D

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Every value on this page was computed from “28141d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.