Colour

#FF0028

#FF0028
Red
Dark
Nearest: Red

#FF0028 is a red with RGB values 255, 0, 40 and HSL 351°, 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 Red.

Colour values

#FF0028#FF0028

HEX#FF0028

RGBrgb(255, 0, 40)

RGB (0–1)1, 0, 0.1569

RGB percentages100%, 0%, 15.7%

HSLhsl(350.6, 100%, 50%)

HSV / HSBhsv(350.6, 100%, 100%)

CMYK0%, 100%, 84.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,720

CSS custom property--colour: #FF0028;

Brightness & contrast

Relative luminance0.21413WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.28:1

Contrast with white3.98:1WCAG normal text: Fail

Contrast with black5.28:1WCAG normal text: AA

Greyscale equivalent#393939

Inverted#00FFD7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B6025no red cones; affects about 1% of men; ΔE 87.1 from the original

Deuteranopia#A29117no green cones; the most common form, about 1% of men; ΔE 87 from the original

Tritanopia#FF001Bno blue cones; rare, and affects men and women equally; ΔE 5.8 from the original

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

Contrast with white, large text3.98:1WCAG large text: AA

Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Red · ΔE 13.8 Orange red · ΔE 20.5 Crimson · ΔE 23 Tomato · ΔE 25.3 Firebrick · ΔE 32.6 Coral · ΔE 38.3

Nearest named CSS colourRed (#FF0000)ΔE 13.75, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FFD7

Analogous#FF00A8, #FF5700

Triadic#28FF00, #0028FF

Split complementary#00FF57, #00A8FF

Tetradic#A8FF00, #00FFD7, #5700FF

Tints, shades & saturation

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

Lighter +40%#FFCCD4

Lighter +30%#FF99A9

Lighter +20%#FF667E

Lighter +10%#FF3353

Darker −10%#CC0020

Darker −20%#990018

Darker −30%#660010

Darker −40%#330008

More saturated +25%#FF0028

Less saturated −25%#DF203E

Channel breakdown

R255

B40

Red255 (100%)

Green0 (0%)

Blue40 (15.7%)

Hue350.59°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 00 · B 28

Keep nerding

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#FF0028

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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