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Recognised as Colour

#40292C

  • #40292C
  • Red
  • Dark
  • Nearest: Black

#40292C is a red with RGB values 64, 41, 44 and HSL 352°, 22%, 21%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#40292C#40292C
HEX#40292C
RGBrgb(64, 41, 44)
RGB (0–1)0.251, 0.1608, 0.1725
RGB percentages25.1%, 16.1%, 17.3%
HSLhsl(352.2, 21.9%, 20.6%)
HSV / HSBhsv(352.2, 35.9%, 25.1%)
CMYK0%, 35.9%, 31.2%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,204,844
CSS custom property--colour: #40292C;

Brightness & contrast

Relative luminance0.02858WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.36:1
Contrast with white13.36:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#BFD6D3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D2D2Cno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#32312Cno green cones; the most common form, about 1% of men; ΔE 12 from the original
Tritanopia#44272Ano blue cones; rare, and affects men and women equally; ΔE 3.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.36:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Black · ΔE 22.6Dark slate grey · ΔE 26.5Dim grey · ΔE 27.5Gray · ΔE 36Slate grey · ΔE 38.2Light slate grey · ΔE 41.2
Nearest named CSS colourBlack (#000000)ΔE 22.62, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#29403D
Analogous#402938, #403129
Triadic#2C4029, #292C40
Split complementary#294031, #293740
Tetradic#374029, #29403D, #312940

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B1848A
Lighter +30%#9D656D
Lighter +20%#7E5157
Lighter +10%#5F3D41
Darker −10%#211517
Darker −20%#020101
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4D1C22
Less saturated −25%#353535

Channel breakdown

R64
G41
B44
Red64 (25.1%)
Green41 (16.1%)
Blue44 (17.3%)
Hue352.17°
Saturation (HSL)21.9%
Lightness20.59%
Dominant channelRed
Hex per channelR 40 · G 29 · B 2C

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Every value on this page was computed from “40292c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.