Recognised as Colour

#FB003A

#FB003A
Red
Dark
Nearest: Crimson

#FB003A is a red with RGB values 251, 0, 58 and HSL 346°, 100%, 49%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FB003A#FB003A

HEX#FB003A

RGBrgb(251, 0, 58)

RGB (0–1)0.9843, 0, 0.2275

RGB percentages98.4%, 0%, 22.7%

HSLhsl(346.1, 100%, 49.2%)

HSV / HSBhsv(346.1, 100%, 98.4%)

CMYK0%, 100%, 76.9%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,449,594

CSS custom property--colour: #FB003A;

Brightness & contrast

Relative luminance0.20815WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.16:1

Contrast with white4.07:1WCAG normal text: Fail

Contrast with black5.16:1WCAG normal text: AA

Greyscale equivalent#3A3A3A

Inverted#04FFC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#685F39no red cones; affects about 1% of men; ΔE 85.7 from the original

Deuteranopia#9F8E30no green cones; the most common form, about 1% of men; ΔE 85.3 from the original

Tritanopia#FF0024no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original

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

Contrast with white, large text4.07:1WCAG large text: AA

Contrast with black, large text5.16:1WCAG large text: AAA

Named colours

Crimson · ΔE 14.2 Red · ΔE 24.3 Tomato · ΔE 24.4 Firebrick · ΔE 28.2 Orange red · ΔE 29.2 Brown · ΔE 36.2

Nearest named CSS colourCrimson (#DC143C)ΔE 14.25, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FBC1

Analogous#FB00B8, #FB4400

Triadic#3AFB00, #003AFB

Split complementary#00FB44, #00B8FB

Tetradic#B8FB00, #00FBC1, #4300FB

Tints, shades & saturation

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

Lighter +40%#FFC8D5

Lighter +30%#FF95AD

Lighter +20%#FF6286

Lighter +10%#FF2F5F

Darker −10%#C8002E

Darker −20%#950022

Darker −30%#620017

Darker −40%#2F000B

More saturated +25%#FB003A

Less saturated −25%#DC1F4B

Channel breakdown

R251

B58

Red251 (98.4%)

Green0 (0%)

Blue58 (22.7%)

Hue346.14°

Saturation (HSL)100%

Lightness49.22%

Dominant channelRed

Hex per channelR FB · G 00 · B 3A

Keep nerding

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

#FB003A

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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