Colour

#FF004B

#FF004B
Red
Dark
Nearest: Crimson

#FF004B is a red with RGB values 255, 0, 75 and HSL 342°, 100%, 50%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF004B#FF004B

HEX#FF004B

RGBrgb(255, 0, 75)

RGB (0–1)1, 0, 0.2941

RGB percentages100%, 0%, 29.4%

HSLhsl(342.4, 100%, 50%)

HSV / HSBhsv(342.4, 100%, 100%)

CMYK0%, 100%, 70.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,755

CSS custom property--colour: #FF004B;

Brightness & contrast

Relative luminance0.21768WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.35:1

Contrast with white3.92:1WCAG normal text: Fail

Contrast with black5.35:1WCAG normal text: AA

Greyscale equivalent#3C3C3C

Inverted#00FFB4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#68624Bno red cones; affects about 1% of men; ΔE 86.6 from the original

Deuteranopia#A09143no green cones; the most common form, about 1% of men; ΔE 86.8 from the original

Tritanopia#FF002Dno blue cones; rare, and affects men and women equally; ΔE 16.5 from the original

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

Contrast with white, large text3.92:1WCAG large text: AA

Contrast with black, large text5.35:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.6 Tomato · ΔE 27.9 Firebrick · ΔE 29.7 Red · ΔE 32.8 Brown · ΔE 36 Orange red · ΔE 37.4

Nearest named CSS colourCrimson (#DC143C)ΔE 12.65, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FFB4

Analogous#FF00CA, #FF3500

Triadic#4BFF00, #004BFF

Split complementary#00FF35, #00CAFF

Tetradic#CAFF00, #00FFB4, #3500FF

Tints, shades & saturation

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

Lighter +40%#FFCCDB

Lighter +30%#FF99B7

Lighter +20%#FF6693

Lighter +10%#FF336F

Darker −10%#CC003C

Darker −20%#99002D

Darker −30%#66001E

Darker −40%#33000F

More saturated +25%#FF004B

Less saturated −25%#DF2058

Channel breakdown

R255

B75

Red255 (100%)

Green0 (0%)

Blue75 (29.4%)

Hue342.35°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 00 · B 4B

Keep nerding

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

#FF004B

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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