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Recognised as Colour

#2B171E

  • #2B171E
  • Red
  • Dark
  • Nearest: Black

#2B171E is a red with RGB values 43, 23, 30 and HSL 339°, 30%, 13%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2B171E#2B171E
HEX#2B171E
RGBrgb(43, 23, 30)
RGB (0–1)0.1686, 0.0902, 0.1176
RGB percentages16.9%, 9%, 11.8%
HSLhsl(339, 30.3%, 12.9%)
HSV / HSBhsv(339, 46.5%, 16.9%)
CMYK0%, 46.5%, 30.2%, 83.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,823,966
CSS custom property--colour: #2B171E;

Brightness & contrast

Relative luminance0.0122WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.88:1
Contrast with white16.88:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#D4E8E1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1A1B1Eno red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#1E1E1Eno green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#2E1619no 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 text16.88:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 15.6Dark slate grey · ΔE 31Dim grey · ΔE 35.6Gray · ΔE 44.4Slate grey · ΔE 45.3Light slate grey · ΔE 48.4
Nearest named CSS colourBlack (#000000)ΔE 15.6, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#172B24
Analogous#2B1728, #2B1A17
Triadic#1E2B17, #171E2B
Split complementary#172B1A, #17282B
Tetradic#282B17, #172B24, #1A172B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AB637C
Lighter +30%#8F4C64
Lighter +20%#6D3B4C
Lighter +10%#4C2935
Darker −10%#0A0507
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#330F1C
Less saturated −25%#231F20

Channel breakdown

R43
G23
B30
Red43 (16.9%)
Green23 (9%)
Blue30 (11.8%)
Hue339°
Saturation (HSL)30.3%
Lightness12.94%
Dominant channelRed
Hex per channelR 2B · G 17 · B 1E

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Every value on this page was computed from “2b171e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.