Colour

#FF2304

#FF2304
Red
Dark
Nearest: Red

#FF2304 is a red with RGB values 255, 35, 4 and HSL 7°, 100%, 51%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF2304#FF2304

HEX#FF2304

RGBrgb(255, 35, 4)

RGB (0–1)1, 0.1373, 0.0157

RGB percentages100%, 13.7%, 1.6%

HSLhsl(7.4, 100%, 50.8%)

HSV / HSBhsv(7.4, 98.4%, 100%)

CMYK0%, 86.3%, 98.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,644

CSS custom property--colour: #FF2304;

Brightness & contrast

Relative luminance0.22471WCAG 2.x, 0 is black and 1 is white

Perceived brightness142 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.49:1

Contrast with white3.82:1WCAG normal text: Fail

Contrast with black5.49:1WCAG normal text: AA

Greyscale equivalent#505050

Inverted#00DCFB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#726400no red cones; affects about 1% of men; ΔE 83.2 from the original

Deuteranopia#A69300no green cones; the most common form, about 1% of men; ΔE 82.3 from the original

Tritanopia#FF0023no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text3.82:1WCAG large text: AA

Contrast with black, large text5.49:1WCAG large text: AAA

Named colours

Red · ΔE 3.9 Orange red · ΔE 9.4 Tomato · ΔE 28.6 Crimson · ΔE 34.4 Coral · ΔE 38.7 Firebrick · ΔE 38.8

Nearest named CSS colourRed (#FF0000)ΔE 3.91, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04E0FF

Analogous#FF0463, #FFA104

Triadic#04FF23, #2304FF

Split complementary#04FFA0, #0463FF

Tetradic#62FF04, #04E0FF, #A004FF

Tints, shades & saturation

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

Lighter +40%#FFD6D0

Lighter +30%#FFA99D

Lighter +20%#FF7C6A

Lighter +10%#FF5037

Darker −10%#D01A00

Darker −20%#9D1300

Darker −30%#6A0D00

Darker −40%#370700

More saturated +25%#FF2304

Less saturated −25%#E03B23

Channel breakdown

R255

G35

Red255 (100%)

Green35 (13.7%)

Blue4 (1.6%)

Hue7.41°

Saturation (HSL)100%

Lightness50.78%

Dominant channelRed

Hex per channelR FF · G 23 · B 04

Keep nerding

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

#FF2304

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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