Recognised as Colour

#EF1F06

#EF1F06
Red
Dark
Nearest: Red

#EF1F06 is a red with RGB values 239, 31, 6 and HSL 6°, 95%, 48%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#EF1F06#EF1F06

HEX#EF1F06

RGBrgb(239, 31, 6)

RGB (0–1)0.9373, 0.1216, 0.0235

RGB percentages93.7%, 12.2%, 2.4%

HSLhsl(6.4, 95.1%, 48%)

HSV / HSBhsv(6.4, 97.5%, 93.7%)

CMYK0%, 87%, 97.5%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,671,046

CSS custom property--colour: #EF1F06;

Brightness & contrast

Relative luminance0.19344WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.87:1

Contrast with white4.31:1WCAG normal text: Fail

Contrast with black4.87:1WCAG normal text: AA

Greyscale equivalent#494949

Inverted#10E0F9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A5D00no red cones; affects about 1% of men; ΔE 79.4 from the original

Deuteranopia#9B8900no green cones; the most common form, about 1% of men; ΔE 78.5 from the original

Tritanopia#FF0020no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original

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

Contrast with white, large text4.31:1WCAG large text: AA

Contrast with black, large text4.87:1WCAG large text: AAA

Named colours

Red · ΔE 8.6 Orange red · ΔE 10.3 Tomato · ΔE 25 Crimson · ΔE 29.6 Firebrick · ΔE 32.7 Coral · ΔE 35.5

Nearest named CSS colourRed (#FF0000)ΔE 8.6, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#06D6EF

Analogous#EF0661, #EF9406

Triadic#06EF1F, #1F06EF

Split complementary#06EF93, #0662EF

Tetradic#61EF06, #06D6EF, #9306EF

Tints, shades & saturation

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

Lighter +40%#FECAC3

Lighter +30%#FC9D92

Lighter +20%#FB7160

Lighter +10%#FA442E

Darker −10%#BD1905

Darker −20%#8B1204

Darker −30%#5A0C02

Darker −40%#280501

More saturated +25%#F51A00

Less saturated −25%#D03725

Channel breakdown

R239

G31

Red239 (93.7%)

Green31 (12.2%)

Blue6 (2.4%)

Hue6.44°

Saturation (HSL)95.1%

Lightness48.04%

Dominant channelRed

Hex per channelR EF · G 1F · B 06

Keep nerding

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

#EF1F06

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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