Recognised as Colour

#EF000C

#EF000C
Red
Dark
Nearest: Red

#EF000C is a red with RGB values 239, 0, 12 and HSL 357°, 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

#EF000C#EF000C

HEX#EF000C

RGBrgb(239, 0, 12)

RGB (0–1)0.9373, 0, 0.0471

RGB percentages93.7%, 0%, 4.7%

HSLhsl(357, 100%, 46.9%)

HSV / HSBhsv(357, 100%, 93.7%)

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

24-bit integer15,663,116

CSS custom property--colour: #EF000C;

Brightness & contrast

Relative luminance0.18377WCAG 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 4.68:1

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

Contrast with black4.68:1WCAG normal text: AA

Greyscale equivalent#343434

Inverted#10FFF3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655902no red cones; affects about 1% of men; ΔE 82.8 from the original

Deuteranopia#988700no green cones; the most common form, about 1% of men; ΔE 82.1 from the original

Tritanopia#FF0010no blue cones; rare, and affects men and women equally; ΔE 5.6 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 text4.68:1WCAG large text: AAA

Named colours

Red · ΔE 8.1 Orange red · ΔE 14.1 Tomato · ΔE 26.4 Crimson · ΔE 27.9 Firebrick · ΔE 32.7 Coral · ΔE 37.9

Nearest named CSS colourRed (#FF0000)ΔE 8.12, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00EFE3

Analogous#EF0084, #EF6B00

Triadic#0CEF00, #000CEF

Split complementary#00EF6B, #0084EF

Tetradic#84EF00, #00EFE3, #6B00EF

Tints, shades & saturation

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

Lighter +40%#FFBCBF

Lighter +30%#FF898F

Lighter +20%#FF565E

Lighter +10%#FF232E

Darker −10%#BC0009

Darker −20%#890007

Darker −30%#560004

Darker −40%#230002

More saturated +25%#EF000C

Less saturated −25%#D11E27

Channel breakdown

R239

B12

Red239 (93.7%)

Green0 (0%)

Blue12 (4.7%)

Hue356.99°

Saturation (HSL)100%

Lightness46.86%

Dominant channelRed

Hex per channelR EF · G 00 · B 0C

Keep nerding

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

#EF000C

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

Nerdulate something else