Recognised as Colour

#FF184A

#FF184A
Red
Dark
Nearest: Crimson

#FF184A is a red with RGB values 255, 24, 74 and HSL 347°, 100%, 55%. 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

#FF184A#FF184A

HEX#FF184A

RGBrgb(255, 24, 74)

RGB (0–1)1, 0.0941, 0.2902

RGB percentages100%, 9.4%, 29%

HSLhsl(347, 100%, 54.7%)

HSV / HSBhsv(347, 90.6%, 100%)

CMYK0%, 90.6%, 71%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,717,898

CSS custom property--colour: #FF184A;

Brightness & contrast

Relative luminance0.22408WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.8 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#4D4D4D

Inverted#00E7B5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B644Ano red cones; affects about 1% of men; ΔE 84.6 from the original

Deuteranopia#A29242no green cones; the most common form, about 1% of men; ΔE 84.4 from the original

Tritanopia#FF0032no blue cones; rare, and affects men and women equally; ΔE 12.6 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 11.6 Tomato · ΔE 25.3 Firebrick · ΔE 28.2 Red · ΔE 31.4 Brown · ΔE 34.7 Orange red · ΔE 35.3

Nearest named CSS colourCrimson (#DC143C)ΔE 11.6, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18FFCD

Analogous#FF18BE, #FF5A18

Triadic#4AFF18, #184AFF

Split complementary#18FF5A, #18BEFF

Tetradic#BDFF18, #18FFCD, #5918FF

Tints, shades & saturation

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

Lighter +40%#FFE4EA

Lighter +30%#FFB1C2

Lighter +20%#FF7E9A

Lighter +10%#FF4B72

Darker −10%#E40031

Darker −20%#B10026

Darker −30%#7E001B

Darker −40%#4B0010

More saturated +25%#FF184A

Less saturated −25%#E2355A

Channel breakdown

R255

G24

B74

Red255 (100%)

Green24 (9.4%)

Blue74 (29%)

Hue347.01°

Saturation (HSL)100%

Lightness54.71%

Dominant channelRed

Hex per channelR FF · G 18 · B 4A

Keep nerding

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

#FF184A

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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