Colour

#EF0C00

#EF0C00
Red
Dark
Nearest: Red

#EF0C00 is a red with RGB values 239, 12, 0 and HSL 3°, 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

#EF0C00#EF0C00

HEX#EF0C00

RGBrgb(239, 12, 0)

RGB (0–1)0.9373, 0.0471, 0

RGB percentages93.7%, 4.7%, 0%

HSLhsl(3, 100%, 46.9%)

HSV / HSBhsv(3, 100%, 93.7%)

CMYK0%, 95%, 100%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,666,176

CSS custom property--colour: #EF0C00;

Brightness & contrast

Relative luminance0.18614WCAG 2.x, 0 is black and 1 is white

Perceived brightness131 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.72:1

Contrast with white4.45:1WCAG normal text: Fail

Contrast with black4.72:1WCAG normal text: AA

Greyscale equivalent#3B3B3B

Inverted#10F3FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#675A00no red cones; affects about 1% of men; ΔE 82 from the original

Deuteranopia#998700no green cones; the most common form, about 1% of men; ΔE 80.7 from the original

Tritanopia#FF0013no blue cones; rare, and affects men and women equally; ΔE 6.1 from the original

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

Contrast with white, large text4.45:1WCAG large text: AA

Contrast with black, large text4.72:1WCAG large text: AAA

Named colours

Red · ΔE 6.4 Orange red · ΔE 11.6 Tomato · ΔE 27.6 Crimson · ΔE 31 Firebrick · ΔE 34.7 Coral · ΔE 38.3

Nearest named CSS colourRed (#FF0000)ΔE 6.41, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E3EF

Analogous#EF006B, #EF8400

Triadic#00EF0C, #0C00EF

Split complementary#00EF84, #006BEF

Tetradic#6BEF00, #00E3EF, #8400EF

Tints, shades & saturation

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

Lighter +40%#FFBFBC

Lighter +30%#FF8F89

Lighter +20%#FF5E56

Lighter +10%#FF2E23

Darker −10%#BC0900

Darker −20%#890700

Darker −30%#560400

Darker −40%#230200

More saturated +25%#EF0C00

Less saturated −25%#D1271E

Channel breakdown

R239

G12

Red239 (93.7%)

Green12 (4.7%)

Blue0 (0%)

Hue3.01°

Saturation (HSL)100%

Lightness46.86%

Dominant channelRed

Hex per channelR EF · G 0C · B 00

Keep nerding

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

#EF0C00

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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