Colour

#FF0025

#FF0025
Red
Dark
Nearest: Red

#FF0025 is a red with RGB values 255, 0, 37 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

#FF0025#FF0025

HEX#FF0025

RGBrgb(255, 0, 37)

RGB (0–1)1, 0, 0.1451

RGB percentages100%, 0%, 14.5%

HSLhsl(351.3, 100%, 50%)

HSV / HSBhsv(351.3, 100%, 100%)

CMYK0%, 100%, 85.5%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,717

CSS custom property--colour: #FF0025;

Brightness & contrast

Relative luminance0.21394WCAG 2.x, 0 is black and 1 is white

Perceived brightness140 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#00FFDA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C6021no red cones; affects about 1% of men; ΔE 86.7 from the original

Deuteranopia#A29012no green cones; the most common form, about 1% of men; ΔE 86.4 from the original

Tritanopia#FF001Ano blue cones; rare, and affects men and women equally; ΔE 4.8 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 12.3 Orange red · ΔE 19.4 Crimson · ΔE 24.2 Tomato · ΔE 25.7 Firebrick · ΔE 33.2 Coral · ΔE 38.5

Nearest named CSS colourRed (#FF0000)ΔE 12.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FFDA

Analogous#FF00A5, #FF5B00

Triadic#25FF00, #0025FF

Split complementary#00FF5B, #00A5FF

Tetradic#A4FF00, #00FFDA, #5A00FF

Tints, shades & saturation

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

Lighter +40%#FFCCD3

Lighter +30%#FF99A8

Lighter +20%#FF667C

Lighter +10%#FF3351

Darker −10%#CC001E

Darker −20%#990016

Darker −30%#66000F

Darker −40%#330007

More saturated +25%#FF0025

Less saturated −25%#DF203C

Channel breakdown

R255

B37

Red255 (100%)

Green0 (0%)

Blue37 (14.5%)

Hue351.29°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 00 · B 25

Keep nerding

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#FF0025

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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