Recognised as Colour

#FF1D38

#FF1D38
Red
Dark
Nearest: Crimson

#FF1D38 is a red with RGB values 255, 29, 56 and HSL 353°, 100%, 56%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF1D38#FF1D38

HEX#FF1D38

RGBrgb(255, 29, 56)

RGB (0–1)1, 0.1137, 0.2196

RGB percentages100%, 11.4%, 22%

HSLhsl(352.8, 100%, 55.7%)

HSV / HSBhsv(352.8, 88.6%, 100%)

CMYK0%, 88.6%, 78%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,719,160

CSS custom property--colour: #FF1D38;

Brightness & contrast

Relative luminance0.22424WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.48:1

Contrast with white3.83:1WCAG normal text: Fail

Contrast with black5.48:1WCAG normal text: AA

Greyscale equivalent#4F4F4F

Inverted#00E2C7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6436no red cones; affects about 1% of men; ΔE 84.2 from the original

Deuteranopia#A4932Eno green cones; the most common form, about 1% of men; ΔE 84 from the original

Tritanopia#FF002Cno blue cones; rare, and affects men and women equally; ΔE 6 from the original

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

Contrast with white, large text3.83:1WCAG large text: AA

Contrast with black, large text5.48:1WCAG large text: AAA

Named colours

Crimson · ΔE 16.3 Red · ΔE 21.2 Tomato · ΔE 21.8 Orange red · ΔE 25.3 Firebrick · ΔE 28.4 Coral · ΔE 35.3

Nearest named CSS colourCrimson (#DC143C)ΔE 16.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1DFFE4

Analogous#FF1DA9, #FF731D

Triadic#38FF1D, #1D38FF

Split complementary#1DFF73, #1DA9FF

Tetradic#A9FF1D, #1DFFE4, #731DFF

Tints, shades & saturation

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

Lighter +40%#FFE9EC

Lighter +30%#FFB6BF

Lighter +20%#FF8392

Lighter +10%#FF5065

Darker −10%#E9001C

Darker −20%#B60016

Darker −30%#830010

Darker −40%#50000A

More saturated +25%#FF1D38

Less saturated −25%#E3394E

Channel breakdown

R255

G29

B56

Red255 (100%)

Green29 (11.4%)

Blue56 (22%)

Hue352.83°

Saturation (HSL)100%

Lightness55.69%

Dominant channelRed

Hex per channelR FF · G 1D · B 38

Keep nerding

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

#FF1D38

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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