Colour

#CB0404

#CB0404
Red
Dark
Nearest: Orange red

#CB0404 is a red with RGB values 203, 4, 4 and HSL 0°, 96%, 41%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#CB0404#CB0404

HEX#CB0404

RGBrgb(203, 4, 4)

RGB (0–1)0.7961, 0.0157, 0.0157

RGB percentages79.6%, 1.6%, 1.6%

HSLhsl(0, 96.1%, 40.6%)

HSV / HSBhsv(0, 98%, 79.6%)

CMYK0%, 98%, 98%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,304,836

CSS custom property--colour: #CB0404;

Brightness & contrast

Relative luminance0.12792WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.9:1

Contrast with white5.9:1WCAG normal text: AA

Contrast with black3.56:1WCAG normal text: Fail

Greyscale equivalent#2E2E2E

Inverted#34FBFB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#564B00no red cones; affects about 1% of men; ΔE 72.7 from the original

Deuteranopia#817200no green cones; the most common form, about 1% of men; ΔE 72 from the original

Tritanopia#E1000Dno blue cones; rare, and affects men and women equally; ΔE 7.7 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.9:1WCAG large text: AAA

Contrast with black, large text3.56:1WCAG large text: AA

Named colours

Orange red · ΔE 20.4 Red · ΔE 20.7 Firebrick · ΔE 21.1 Crimson · ΔE 22.5 Tomato · ΔE 23.5 Dark red · ΔE 25.7

Nearest named CSS colourOrange red (#FF4500)ΔE 20.42, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04CBCB

Analogous#CB0468, #CB6804

Triadic#04CB04, #0404CB

Split complementary#04CB68, #0468CB

Tetradic#68CB04, #04CBCB, #6804CB

Tints, shades & saturation

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

Lighter +40%#FD9E9E

Lighter +30%#FC6C6C

Lighter +20%#FB3A3A

Lighter +10%#FA0808

Darker −10%#990303

Darker −20%#670202

Darker −30%#350101

Darker −40%#030000

More saturated +25%#CF0000

Less saturated −25%#B11E1E

Channel breakdown

R203

Red203 (79.6%)

Green4 (1.6%)

Blue4 (1.6%)

Hue0°

Saturation (HSL)96.14%

Lightness40.59%

Dominant channelRed

Hex per channelR CB · G 04 · B 04

Keep nerding

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

#CB0404

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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