Colour

#FF1B4F

#FF1B4F
Red
Dark
Nearest: Crimson

#FF1B4F is a red with RGB values 255, 27, 79 and HSL 346°, 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

#FF1B4F#FF1B4F

HEX#FF1B4F

RGBrgb(255, 27, 79)

RGB (0–1)1, 0.1059, 0.3098

RGB percentages100%, 10.6%, 31%

HSLhsl(346.3, 100%, 55.3%)

HSV / HSBhsv(346.3, 89.4%, 100%)

CMYK0%, 89.4%, 69%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,718,671

CSS custom property--colour: #FF1B4F;

Brightness & contrast

Relative luminance0.22608WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.52:1

Contrast with white3.8:1WCAG normal text: Fail

Contrast with black5.52:1WCAG normal text: AA

Greyscale equivalent#4F4F4F

Inverted#00E4B0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B654Fno red cones; affects about 1% of men; ΔE 84.1 from the original

Deuteranopia#A29348no green cones; the most common form, about 1% of men; ΔE 84.3 from the original

Tritanopia#FF0035no blue cones; rare, and affects men and women equally; ΔE 13.7 from the original

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

Contrast with white, large text3.8:1WCAG large text: AA

Contrast with black, large text5.52:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.4 Tomato · ΔE 26.4 Firebrick · ΔE 28.5 Red · ΔE 34.1 Brown · ΔE 34.4 Indian red · ΔE 36.3

Nearest named CSS colourCrimson (#DC143C)ΔE 11.38, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BFFCB

Analogous#FF1BC1, #FF591B

Triadic#4FFF1B, #1B4FFF

Split complementary#1BFF59, #1BC1FF

Tetradic#C1FF1B, #1BFFCB, #591BFF

Tints, shades & saturation

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

Lighter +40%#FFE7EC

Lighter +30%#FFB4C5

Lighter +20%#FF819E

Lighter +10%#FF4E76

Darker −10%#E70035

Darker −20%#B40029

Darker −30%#81001D

Darker −40%#4E0012

More saturated +25%#FF1B4F

Less saturated −25%#E3375F

Channel breakdown

R255

G27

B79

Red255 (100%)

Green27 (10.6%)

Blue79 (31%)

Hue346.32°

Saturation (HSL)100%

Lightness55.29%

Dominant channelRed

Hex per channelR FF · G 1B · B 4F

Keep nerding

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

#FF1B4F

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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