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Recognised as Colour

#24191B

  • #24191B
  • Red
  • Dark
  • Nearest: Black

#24191B is a red with RGB values 36, 25, 27 and HSL 349°, 18%, 12%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#24191B#24191B
HEX#24191B
RGBrgb(36, 25, 27)
RGB (0–1)0.1412, 0.098, 0.1059
RGB percentages14.1%, 9.8%, 10.6%
HSLhsl(349.1, 18%, 12%)
HSV / HSBhsv(349.1, 30.6%, 14.1%)
CMYK0%, 30.6%, 25%, 85.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,365,723
CSS custom property--colour: #24191B;

Brightness & contrast

Relative luminance0.01149WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.07:1
Contrast with white17.07:1WCAG normal text: AAA
Contrast with black1.23:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#DBE6E4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1B1B1Bno red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#1D1D1Bno green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#26181Ano blue cones; rare, and affects men and women equally; ΔE 1.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.07:1WCAG large text: AAA
Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Black · ΔE 11.8Dark slate grey · ΔE 27.8Dim grey · ΔE 34.7Gray · ΔE 43.8Slate grey · ΔE 44.9Light slate grey · ΔE 47.9
Nearest named CSS colourBlack (#000000)ΔE 11.79, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#192422
Analogous#241921, #241C19
Triadic#1B2419, #191B24
Split complementary#19241C, #192124
Tetradic#212419, #192422, #1C1924

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9B6E76
Lighter +30%#7E585F
Lighter +20%#604348
Lighter +10%#422E32
Darker −10%#060404
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2C1116
Less saturated −25%#1E1E1E

Channel breakdown

R36
G25
B27
Red36 (14.1%)
Green25 (9.8%)
Blue27 (10.6%)
Hue349.09°
Saturation (HSL)18.03%
Lightness11.96%
Dominant channelRed
Hex per channelR 24 · G 19 · B 1B

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Every value on this page was computed from “24191b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.