Colour

#FF2143

#FF2143
Red
Dark
Nearest: Crimson

#FF2143 is a red with RGB values 255, 33, 67 and HSL 351°, 100%, 56%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF2143#FF2143

HEX#FF2143

RGBrgb(255, 33, 67)

RGB (0–1)1, 0.1294, 0.2627

RGB percentages100%, 12.9%, 26.3%

HSLhsl(350.8, 100%, 56.5%)

HSV / HSBhsv(350.8, 87.1%, 100%)

CMYK0%, 87.1%, 73.7%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,195

CSS custom property--colour: #FF2143;

Brightness & contrast

Relative luminance0.22753WCAG 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 5.55:1

Contrast with white3.78:1WCAG normal text: Fail

Contrast with black5.55:1WCAG normal text: AA

Greyscale equivalent#535353

Inverted#00DEBC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6642no red cones; affects about 1% of men; ΔE 83.6 from the original

Deuteranopia#A3933Bno green cones; the most common form, about 1% of men; ΔE 83.4 from the original

Tritanopia#FF0032no blue cones; rare, and affects men and women equally; ΔE 8.6 from the original

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

Contrast with white, large text3.78:1WCAG large text: AA

Contrast with black, large text5.55:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.5 Tomato · ΔE 22.3 Red · ΔE 27 Firebrick · ΔE 27.2 Orange red · ΔE 30.5 Brown · ΔE 34.6

Nearest named CSS colourCrimson (#DC143C)ΔE 12.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#21FFDD

Analogous#FF21B2, #FF6E21

Triadic#43FF21, #2143FF

Split complementary#21FF6E, #21B2FF

Tetradic#B2FF21, #21FFDD, #6E21FF

Tints, shades & saturation

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

Lighter +40%#FFEDF0

Lighter +30%#FFBAC5

Lighter +20%#FF8799

Lighter +10%#FF546E

Darker −10%#ED0024

Darker −20%#BA001C

Darker −30%#870015

Darker −40%#54000D

More saturated +25%#FF2143

Less saturated −25%#E33D56

Channel breakdown

R255

G33

B67

Red255 (100%)

Green33 (12.9%)

Blue67 (26.3%)

Hue350.81°

Saturation (HSL)100%

Lightness56.47%

Dominant channelRed

Hex per channelR FF · G 21 · B 43

Keep nerding

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

#FF2143

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

Nerdulate something else