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Recognised as Colour

#28121A

  • #28121A
  • Red
  • Dark
  • Nearest: Black

#28121A is a red with RGB values 40, 18, 26 and HSL 338°, 38%, 11%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28121A#28121A
HEX#28121A
RGBrgb(40, 18, 26)
RGB (0–1)0.1569, 0.0706, 0.102
RGB percentages15.7%, 7.1%, 10.2%
HSLhsl(338.2, 37.9%, 11.4%)
HSV / HSBhsv(338.2, 55%, 15.7%)
CMYK0%, 55%, 35%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,626,074
CSS custom property--colour: #28121A;

Brightness & contrast

Relative luminance0.00958WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.62:1
Contrast with white17.62:1WCAG normal text: AAA
Contrast with black1.19:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#D7EDE5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#15161Ano red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#1B1A19no green cones; the most common form, about 1% of men; ΔE 12.6 from the original
Tritanopia#2B1115no blue cones; rare, and affects men and women equally; ΔE 4.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.62:1WCAG large text: AAA
Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Black · ΔE 15.4Dark slate grey · ΔE 33.4Dim grey · ΔE 38Gray · ΔE 46.7Slate grey · ΔE 47.7Dark slateblue · ΔE 48.8
Nearest named CSS colourBlack (#000000)ΔE 15.36, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#122820
Analogous#281225, #281512
Triadic#1A2812, #121A28
Split complementary#122815, #122528
Tetradic#252812, #122820, #151228

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B25476
Lighter +30%#92415F
Lighter +20%#6E3248
Lighter +10%#4B2231
Darker −10%#050203
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F0B18
Less saturated −25%#21191C

Channel breakdown

R40
G18
B26
Red40 (15.7%)
Green18 (7.1%)
Blue26 (10.2%)
Hue338.18°
Saturation (HSL)37.93%
Lightness11.37%
Dominant channelRed
Hex per channelR 28 · G 12 · B 1A

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Every value on this page was computed from “28121a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.