Colour

#FF1D18

#FF1D18
Red
Dark
Nearest: Red

#FF1D18 is a red with RGB values 255, 29, 24 and HSL 1°, 100%, 55%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF1D18#FF1D18

HEX#FF1D18

RGBrgb(255, 29, 24)

RGB (0–1)1, 0.1137, 0.0941

RGB percentages100%, 11.4%, 9.4%

HSLhsl(1.3, 100%, 54.7%)

HSV / HSBhsv(1.3, 90.6%, 100%)

CMYK0%, 88.6%, 90.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,719,128

CSS custom property--colour: #FF1D18;

Brightness & contrast

Relative luminance0.22205WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.44:1

Contrast with white3.86:1WCAG normal text: Fail

Contrast with black5.44:1WCAG normal text: AA

Greyscale equivalent#4D4D4D

Inverted#00E2E7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706310no red cones; affects about 1% of men; ΔE 84.1 from the original

Deuteranopia#A59200no green cones; the most common form, about 1% of men; ΔE 83.4 from the original

Tritanopia#FF0022no blue cones; rare, and affects men and women equally; ΔE 5.6 from the original

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

Contrast with white, large text3.86:1WCAG large text: AA

Contrast with black, large text5.44:1WCAG large text: AAA

Named colours

Red · ΔE 6.7 Orange red · ΔE 13 Tomato · ΔE 25.8 Crimson · ΔE 29.2 Firebrick · ΔE 35.3 Coral · ΔE 37.3

Nearest named CSS colourRed (#FF0000)ΔE 6.71, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18FAFF

Analogous#FF1886, #FF9118

Triadic#18FF1D, #1D18FF

Split complementary#18FF91, #1887FF

Tetradic#87FF18, #18FAFF, #9118FF

Tints, shades & saturation

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

Lighter +40%#FFE5E4

Lighter +30%#FFB3B1

Lighter +20%#FF817E

Lighter +10%#FF4F4B

Darker −10%#E40500

Darker −20%#B10400

Darker −30%#7E0300

Darker −40%#4B0200

More saturated +25%#FF1D18

Less saturated −25%#E23935

Channel breakdown

R255

G29

B24

Red255 (100%)

Green29 (11.4%)

Blue24 (9.4%)

Hue1.3°

Saturation (HSL)100%

Lightness54.71%

Dominant channelRed

Hex per channelR FF · G 1D · B 18

Keep nerding

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

#FF1D18

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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