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Recognised as Colour

#281F22

  • #281F22
  • Red
  • Dark
  • Nearest: Black

#281F22 is a red with RGB values 40, 31, 34 and HSL 340°, 13%, 14%. It is a dark colour, so white text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#281F22#281F22
HEX#281F22
RGBrgb(40, 31, 34)
RGB (0–1)0.1569, 0.1216, 0.1333
RGB percentages15.7%, 12.2%, 13.3%
HSLhsl(340, 12.7%, 13.9%)
HSV / HSBhsv(340, 22.5%, 15.7%)
CMYK0%, 22.5%, 15%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,629,410
CSS custom property--colour: #281F22;

Brightness & contrast

Relative luminance0.01547WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.04:1
Contrast with white16.04:1WCAG normal text: AAA
Contrast with black1.31:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#D7E0DD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#202022no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#222222no green cones; the most common form, about 1% of men; ΔE 5 from the original
Tritanopia#2A1F20no blue cones; rare, and affects men and women equally; ΔE 1.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.04:1WCAG large text: AAA
Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Black · ΔE 13.8Dark slate grey · ΔE 25Dim grey · ΔE 31.9Gray · ΔE 41Slate grey · ΔE 41.8Light slate grey · ΔE 44.9
Nearest named CSS colourBlack (#000000)ΔE 13.84, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F2825
Analogous#281F27, #28211F
Triadic#22281F, #1F2228
Split complementary#1F2821, #1F2728
Tetradic#27281F, #1F2825, #211F28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#987B85
Lighter +30%#7E626B
Lighter +20%#614C53
Lighter +10%#45353A
Darker −10%#0B090A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#31161F
Less saturated −25%#242424

Channel breakdown

R40
G31
B34
Red40 (15.7%)
Green31 (12.2%)
Blue34 (13.3%)
Hue340°
Saturation (HSL)12.68%
Lightness13.92%
Dominant channelRed
Hex per channelR 28 · G 1F · B 22

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Every value on this page was computed from “281f22” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.