Colour

#EF0008

#EF0008
Red
Dark
Nearest: Red

#EF0008 is a red with RGB values 239, 0, 8 and HSL 358°, 100%, 47%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#EF0008#EF0008

HEX#EF0008

RGBrgb(239, 0, 8)

RGB (0–1)0.9373, 0, 0.0314

RGB percentages93.7%, 0%, 3.1%

HSLhsl(358, 100%, 46.9%)

HSV / HSBhsv(358, 100%, 93.7%)

CMYK0%, 100%, 96.7%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,663,112

CSS custom property--colour: #EF0008;

Brightness & contrast

Relative luminance0.18368WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.67:1

Contrast with white4.49:1WCAG normal text: Fail

Contrast with black4.67:1WCAG normal text: AA

Greyscale equivalent#333333

Inverted#10FFF7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655900no red cones; affects about 1% of men; ΔE 82.9 from the original

Deuteranopia#998700no green cones; the most common form, about 1% of men; ΔE 81.6 from the original

Tritanopia#FF000Fno blue cones; rare, and affects men and women equally; ΔE 5.4 from the original

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

Contrast with white, large text4.49:1WCAG large text: AA

Contrast with black, large text4.67:1WCAG large text: AAA

Named colours

Red · ΔE 7.3 Orange red · ΔE 13.5 Tomato · ΔE 27 Crimson · ΔE 28.9 Firebrick · ΔE 33.4 Coral · ΔE 38.3

Nearest named CSS colourRed (#FF0000)ΔE 7.35, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00EFE7

Analogous#EF007F, #EF7000

Triadic#08EF00, #0008EF

Split complementary#00EF70, #007FEF

Tetradic#7FEF00, #00EFE7, #7000EF

Tints, shades & saturation

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

Lighter +40%#FFBCBE

Lighter +30%#FF898D

Lighter +20%#FF565C

Lighter +10%#FF232A

Darker −10%#BC0006

Darker −20%#890005

Darker −30%#560003

Darker −40%#230001

More saturated +25%#EF0008

Less saturated −25%#D11E24

Channel breakdown

R239

Red239 (93.7%)

Green0 (0%)

Blue8 (3.1%)

Hue357.99°

Saturation (HSL)100%

Lightness46.86%

Dominant channelRed

Hex per channelR EF · G 00 · B 08

Keep nerding

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#EF0008

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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