Recognised as Colour

#FF0039

#FF0039
Red
Dark
Nearest: Crimson

#FF0039 is a red with RGB values 255, 0, 57 and HSL 347°, 100%, 50%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF0039#FF0039

HEX#FF0039

RGBrgb(255, 0, 57)

RGB (0–1)1, 0, 0.2235

RGB percentages100%, 0%, 22.4%

HSLhsl(346.6, 100%, 50%)

HSV / HSBhsv(346.6, 100%, 100%)

CMYK0%, 100%, 77.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,737

CSS custom property--colour: #FF0039;

Brightness & contrast

Relative luminance0.21555WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.31:1

Contrast with white3.95:1WCAG normal text: Fail

Contrast with black5.31:1WCAG normal text: AA

Greyscale equivalent#3A3A3A

Inverted#00FFC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A6138no red cones; affects about 1% of men; ΔE 87 from the original

Deuteranopia#A1912Eno green cones; the most common form, about 1% of men; ΔE 87 from the original

Tritanopia#FF0023no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original

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

Contrast with white, large text3.95:1WCAG large text: AA

Contrast with black, large text5.31:1WCAG large text: AAA

Named colours

Crimson · ΔE 16.3 Red · ΔE 22.6 Tomato · ΔE 24.7 Orange red · ΔE 28 Firebrick · ΔE 29.7 Brown · ΔE 37.8

Nearest named CSS colourCrimson (#DC143C)ΔE 16.25, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FFC6

Analogous#FF00B9, #FF4600

Triadic#39FF00, #0039FF

Split complementary#00FF46, #00B9FF

Tetradic#B9FF00, #00FFC6, #4600FF

Tints, shades & saturation

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

Lighter +40%#FFCCD7

Lighter +30%#FF99B0

Lighter +20%#FF6688

Lighter +10%#FF3361

Darker −10%#CC002E

Darker −20%#990022

Darker −30%#660017

Darker −40%#33000B

More saturated +25%#FF0039

Less saturated −25%#DF204B

Channel breakdown

R255

B57

Red255 (100%)

Green0 (0%)

Blue57 (22.4%)

Hue346.59°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 00 · B 39

Keep nerding

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

#FF0039

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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