Colour

#FF2B03

#FF2B03
Red
Dark
Nearest: Red

#FF2B03 is a red with RGB values 255, 43, 3 and HSL 10°, 100%, 51%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF2B03#FF2B03

HEX#FF2B03

RGBrgb(255, 43, 3)

RGB (0–1)1, 0.1686, 0.0118

RGB percentages100%, 16.9%, 1.2%

HSLhsl(9.5, 100%, 50.6%)

HSV / HSBhsv(9.5, 98.8%, 100%)

CMYK0%, 83.1%, 98.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,691

CSS custom property--colour: #FF2B03;

Brightness & contrast

Relative luminance0.22994WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.6:1

Contrast with white3.75:1WCAG normal text: Fail

Contrast with black5.6:1WCAG normal text: AA

Greyscale equivalent#555555

Inverted#00D4FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#756600no red cones; affects about 1% of men; ΔE 81.3 from the original

Deuteranopia#A79400no green cones; the most common form, about 1% of men; ΔE 80.8 from the original

Tritanopia#FF0029no blue cones; rare, and affects men and women equally; ΔE 15.4 from the original

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

Contrast with white, large text3.75:1WCAG large text: AA

Contrast with black, large text5.6:1WCAG large text: AAA

Named colours

Red · ΔE 5.5 Orange red · ΔE 7.7 Tomato · ΔE 27.8 Crimson · ΔE 34.8 Coral · ΔE 37.5 Firebrick · ΔE 38.6

Nearest named CSS colourRed (#FF0000)ΔE 5.54, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03D7FF

Analogous#FF0359, #FFA903

Triadic#03FF2B, #2B03FF

Split complementary#03FFA9, #0359FF

Tetradic#59FF03, #03D7FF, #A903FF

Tints, shades & saturation

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

Lighter +40%#FFD7CF

Lighter +30%#FFAC9C

Lighter +20%#FF8169

Lighter +10%#FF5636

Darker −10%#CF2100

Darker −20%#9C1900

Darker −30%#691100

Darker −40%#360900

More saturated +25%#FF2B03

Less saturated −25%#E04022

Channel breakdown

R255

G43

Red255 (100%)

Green43 (16.9%)

Blue3 (1.2%)

Hue9.52°

Saturation (HSL)100%

Lightness50.59%

Dominant channelRed

Hex per channelR FF · G 2B · B 03

Keep nerding

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

#FF2B03

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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