Recognised as Colour

#FF023B

#FF023B
Red
Dark
Nearest: Crimson

#FF023B is a red with RGB values 255, 2, 59 and HSL 346°, 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

#FF023B#FF023B

HEX#FF023B

RGBrgb(255, 2, 59)

RGB (0–1)1, 0.0078, 0.2314

RGB percentages100%, 0.8%, 23.1%

HSLhsl(346.5, 100%, 50.4%)

HSV / HSBhsv(346.5, 99.2%, 100%)

CMYK0%, 99.2%, 76.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,712,251

CSS custom property--colour: #FF023B;

Brightness & contrast

Relative luminance0.21619WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.32:1

Contrast with white3.94:1WCAG normal text: Fail

Contrast with black5.32:1WCAG normal text: AA

Greyscale equivalent#3C3C3C

Inverted#00FDC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A613Ano red cones; affects about 1% of men; ΔE 86.7 from the original

Deuteranopia#A19131no green cones; the most common form, about 1% of men; ΔE 86.8 from the original

Tritanopia#FF0025no blue cones; rare, and affects men and women equally; ΔE 11.4 from the original

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

Contrast with white, large text3.94:1WCAG large text: AA

Contrast with black, large text5.32:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.5 Red · ΔE 23.7 Tomato · ΔE 24.7 Orange red · ΔE 28.9 Firebrick · ΔE 29.5 Brown · ΔE 37.4

Nearest named CSS colourCrimson (#DC143C)ΔE 15.54, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02FFC6

Analogous#FF02B9, #FF4802

Triadic#3BFF02, #023BFF

Split complementary#02FF47, #02B9FF

Tetradic#B9FF02, #02FFC6, #4802FF

Tints, shades & saturation

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

Lighter +40%#FFCED9

Lighter +30%#FF9BB2

Lighter +20%#FF688A

Lighter +10%#FF3563

Darker −10%#CE002E

Darker −20%#9B0023

Darker −30%#680017

Darker −40%#35000C

More saturated +25%#FF023B

Less saturated −25%#DF224C

Channel breakdown

R255

B59

Red255 (100%)

Green2 (0.8%)

Blue59 (23.1%)

Hue346.48°

Saturation (HSL)100%

Lightness50.39%

Dominant channelRed

Hex per channelR FF · G 02 · B 3B

Keep nerding

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

#FF023B

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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