Colour

#FF4057

#FF4057
Red
Dark
Nearest: Crimson

#FF4057 is a red with RGB values 255, 64, 87 and HSL 353°, 100%, 63%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF4057#FF4057

HEX#FF4057

RGBrgb(255, 64, 87)

RGB (0–1)1, 0.251, 0.3412

RGB percentages100%, 25.1%, 34.1%

HSLhsl(352.8, 100%, 62.5%)

HSV / HSBhsv(352.8, 74.9%, 100%)

CMYK0%, 74.9%, 65.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,151

CSS custom property--colour: #FF4057;

Brightness & contrast

Relative luminance0.25615WCAG 2.x, 0 is black and 1 is white

Perceived brightness150.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.12:1

Contrast with white3.43:1WCAG normal text: Fail

Contrast with black6.12:1WCAG normal text: AA

Greyscale equivalent#6A6A6A

Inverted#00BFA8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#787156no red cones; affects about 1% of men; ΔE 75.9 from the original

Deuteranopia#A89951no green cones; the most common form, about 1% of men; ΔE 76.3 from the original

Tritanopia#FF004Ano blue cones; rare, and affects men and women equally; ΔE 11.1 from the original

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

Contrast with white, large text3.43:1WCAG large text: AA

Contrast with black, large text6.12:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.7 Tomato · ΔE 20.2 Firebrick · ΔE 24.9 Salmon · ΔE 28.2 Indian red · ΔE 28.9 Brown · ΔE 29.8

Nearest named CSS colourCrimson (#DC143C)ΔE 10.75, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#40FFE8

Analogous#FF40B7, #FF8940

Triadic#57FF40, #4057FF

Split complementary#40FF89, #40B6FF

Tetradic#B6FF40, #40FFE8, #8840FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFD9DE

Lighter +20%#FFA6B1

Lighter +10%#FF7384

Darker −10%#FF0D2A

Darker −20%#D9001A

Darker −30%#A60014

Darker −40%#73000E

More saturated +25%#FF4057

Less saturated −25%#E75869

Channel breakdown

R255

G64

B87

Red255 (100%)

Green64 (25.1%)

Blue87 (34.1%)

Hue352.77°

Saturation (HSL)100%

Lightness62.55%

Dominant channelRed

Hex per channelR FF · G 40 · B 57

Keep nerding

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

#FF4057

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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