Colour

#E0401F

#E0401F
Red
Dark
Nearest: Tomato

#E0401F is a red with RGB values 224, 64, 31 and HSL 10°, 76%, 50%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E0401F#E0401F

HEX#E0401F

RGBrgb(224, 64, 31)

RGB (0–1)0.8784, 0.251, 0.1216

RGB percentages87.8%, 25.1%, 12.2%

HSLhsl(10.3, 75.7%, 50%)

HSV / HSBhsv(10.3, 86.2%, 87.8%)

CMYK0%, 71.4%, 86.2%, 12.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,696,479

CSS custom property--colour: #E0401F;

Brightness & contrast

Relative luminance0.19613WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.92:1

Contrast with white4.27:1WCAG normal text: Fail

Contrast with black4.92:1WCAG normal text: AA

Greyscale equivalent#606060

Inverted#1FBFE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#716418no red cones; affects about 1% of men; ΔE 65.6 from the original

Deuteranopia#988713no green cones; the most common form, about 1% of men; ΔE 65.8 from the original

Tritanopia#F7003Bno blue cones; rare, and affects men and women equally; ΔE 22.5 from the original

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

Contrast with white, large text4.27:1WCAG large text: AA

Contrast with black, large text4.92:1WCAG large text: AAA

Named colours

Tomato · ΔE 13.1 Orange red · ΔE 18.3 Firebrick · ΔE 20.5 Coral · ΔE 22.6 Crimson · ΔE 23 Chocolate · ΔE 23.9

Nearest named CSS colourTomato (#FF6347)ΔE 13.15, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1FBFE0

Analogous#E01F5F, #E0A11F

Triadic#1FE040, #401FE0

Split complementary#1FE0A1, #1F5EE0

Tetradic#5FE01F, #1FBFE0, #A11FE0

Tints, shades & saturation

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

Lighter +40%#F9D9D2

Lighter +30%#F3B3A5

Lighter +20%#EC8C79

Lighter +10%#E6664C

Darker −10%#B33319

Darker −20%#862613

Darker −30%#5A1A0C

Darker −40%#2D0D06

More saturated +25%#FF2C00

Less saturated −25%#C0553F

Channel breakdown

R224

G64

B31

Red224 (87.8%)

Green64 (25.1%)

Blue31 (12.2%)

Hue10.26°

Saturation (HSL)75.69%

Lightness50%

Dominant channelRed

Hex per channelR E0 · G 40 · B 1F

Keep nerding

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

#E0401F

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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