Recognised as Colour

#EF0600

#EF0600
Red
Dark
Nearest: Red

#EF0600 is a red with RGB values 239, 6, 0 and HSL 2°, 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

#EF0600#EF0600

HEX#EF0600

RGBrgb(239, 6, 0)

RGB (0–1)0.9373, 0.0235, 0

RGB percentages93.7%, 2.4%, 0%

HSLhsl(1.5, 100%, 46.9%)

HSV / HSBhsv(1.5, 100%, 93.7%)

CMYK0%, 97.5%, 100%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,664,640

CSS custom property--colour: #EF0600;

Brightness & contrast

Relative luminance0.18481WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.7:1

Contrast with white4.47:1WCAG normal text: Fail

Contrast with black4.7:1WCAG normal text: AA

Greyscale equivalent#373737

Inverted#10F9FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665900no red cones; affects about 1% of men; ΔE 82.4 from the original

Deuteranopia#998700no green cones; the most common form, about 1% of men; ΔE 81.2 from the original

Tritanopia#FF0010no blue cones; rare, and affects men and women equally; ΔE 5.5 from the original

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

Contrast with white, large text4.47:1WCAG large text: AA

Contrast with black, large text4.7:1WCAG large text: AAA

Named colours

Red · ΔE 6.2 Orange red · ΔE 12 Tomato · ΔE 27.9 Crimson · ΔE 31 Firebrick · ΔE 34.8 Coral · ΔE 38.7

Nearest named CSS colourRed (#FF0000)ΔE 6.19, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E9EF

Analogous#EF0071, #EF7E00

Triadic#00EF06, #0600EF

Split complementary#00EF7E, #0071EF

Tetradic#71EF00, #00E9EF, #7E00EF

Tints, shades & saturation

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

Lighter +40%#FFBEBC

Lighter +30%#FF8C89

Lighter +20%#FF5A56

Lighter +10%#FF2923

Darker −10%#BC0500

Darker −20%#890300

Darker −30%#560200

Darker −40%#230100

More saturated +25%#EF0600

Less saturated −25%#D1221E

Channel breakdown

R239

Red239 (93.7%)

Green6 (2.4%)

Blue0 (0%)

Hue1.51°

Saturation (HSL)100%

Lightness46.86%

Dominant channelRed

Hex per channelR EF · G 06 · B 00

Keep nerding

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

#EF0600

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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