Recognised as Colour

#EF2F2F

#EF2F2F
Red
Dark
Nearest: Crimson

#EF2F2F is a red with RGB values 239, 47, 47 and HSL 0°, 86%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF2F2F#EF2F2F

HEX#EF2F2F

RGBrgb(239, 47, 47)

RGB (0–1)0.9373, 0.1843, 0.1843

RGB percentages93.7%, 18.4%, 18.4%

HSLhsl(0, 85.7%, 56.1%)

HSV / HSBhsv(0, 80.3%, 93.7%)

CMYK0%, 80.3%, 80.3%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,675,183

CSS custom property--colour: #EF2F2F;

Brightness & contrast

Relative luminance0.20589WCAG 2.x, 0 is black and 1 is white

Perceived brightness136.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.12:1

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

Contrast with black5.12:1WCAG normal text: AA

Greyscale equivalent#585858

Inverted#10D0D0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E632Cno red cones; affects about 1% of men; ΔE 75.9 from the original

Deuteranopia#9D8C25no green cones; the most common form, about 1% of men; ΔE 75.7 from the original

Tritanopia#FF0032no blue cones; rare, and affects men and women equally; ΔE 10.6 from the original

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

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

Contrast with black, large text5.12:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.3 Tomato · ΔE 15.8 Red · ΔE 21.7 Orange red · ΔE 21.8 Firebrick · ΔE 22.1 Coral · ΔE 29

Nearest named CSS colourCrimson (#DC143C)ΔE 15.33, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2FEFEF

Analogous#EF2F8F, #EF8F2F

Triadic#2FEF2F, #2F2FEF

Split complementary#2FEF8F, #2F8FEF

Tetradic#8FEF2F, #2FEFEF, #8F2FEF

Tints, shades & saturation

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

Lighter +40%#FEECEC

Lighter +30%#FABDBD

Lighter +20%#F68E8E

Lighter +10%#F35E5E

Darker −10%#DA1111

Darker −20%#AB0D0D

Darker −30%#7C0A0A

Darker −40%#4C0606

More saturated +25%#FF1F1F

Less saturated −25%#D34B4B

Channel breakdown

R239

G47

B47

Red239 (93.7%)

Green47 (18.4%)

Blue47 (18.4%)

Hue0°

Saturation (HSL)85.71%

Lightness56.08%

Dominant channelRed

Hex per channelR EF · G 2F · B 2F

Keep nerding

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

#EF2F2F

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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