Colour

#040303

#040303
Red
Dark
Nearest: Black

#040303 is a red with RGB values 4, 3, 3 and HSL 0°, 14%, 1%. It is a dark colour, so white text on it reaches 20.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#040303#040303

HEX#040303

RGBrgb(4, 3, 3)

RGB (0–1)0.0157, 0.0118, 0.0118

RGB percentages1.6%, 1.2%, 1.2%

HSLhsl(0, 14.3%, 1.4%)

HSV / HSBhsv(0, 25%, 1.6%)

CMYK0%, 25%, 25%, 98.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer262,915

CSS custom property--colour: #040303;

Brightness & contrast

Relative luminance0.00098WCAG 2.x, 0 is black and 1 is white

Perceived brightness3.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 20.6:1

Contrast with white20.6:1WCAG normal text: AAA

Contrast with black1.02:1WCAG normal text: Fail

Greyscale equivalent#030303

Inverted#FBFCFC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#030303no red cones; affects about 1% of men; ΔE 0.3 from the original

Deuteranopia#030303no green cones; the most common form, about 1% of men; ΔE 0.3 from the original

Tritanopia#040303no blue cones; rare, and affects men and women equally; ΔE 0 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text20.6:1WCAG large text: AAA

Contrast with black, large text1.02:1WCAG large text: Fail

Named colours

Black · ΔE 0.9 Dark slate grey · ΔE 32.9 Dim grey · ΔE 43.5 Gray · ΔE 52.7 Slate grey · ΔE 53.1 Dark olivegreen · ΔE 54.8

Nearest named CSS colourBlack (#000000)ΔE 0.92, indistinguishable to the eye

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#030404

Analogous#040304, #040403

Triadic#030403, #030304

Split complementary#030404, #030404

Tetradic#040403, #030404, #040304

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#795A5A

Lighter +30%#5B4545

Lighter +20%#3E2F2F

Lighter +10%#211919

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#050202

Less saturated −25%#040404

Channel breakdown

Red4 (1.6%)

Green3 (1.2%)

Blue3 (1.2%)

Hue0°

Saturation (HSL)14.29%

Lightness1.37%

Dominant channelRed

Hex per channelR 04 · G 03 · B 03

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#040303

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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