Colour

#FF003D

#FF003D
Red
Dark
Nearest: Crimson

#FF003D is a red with RGB values 255, 0, 61 and HSL 346°, 100%, 50%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF003D#FF003D

HEX#FF003D

RGBrgb(255, 0, 61)

RGB (0–1)1, 0, 0.2392

RGB percentages100%, 0%, 23.9%

HSLhsl(345.6, 100%, 50%)

HSV / HSBhsv(345.6, 100%, 100%)

CMYK0%, 100%, 76.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,741

CSS custom property--colour: #FF003D;

Brightness & contrast

Relative luminance0.21597WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.32:1

Contrast with white3.95:1WCAG normal text: Fail

Contrast with black5.32:1WCAG normal text: AA

Greyscale equivalent#3B3B3B

Inverted#00FFC2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A613Cno red cones; affects about 1% of men; ΔE 86.6 from the original

Deuteranopia#A19133no green cones; the most common form, about 1% of men; ΔE 86.9 from the original

Tritanopia#FF0025no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original

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

Contrast with white, large text3.95:1WCAG large text: AA

Contrast with black, large text5.32:1WCAG large text: AAA

Named colours

Crimson · ΔE 14.9 Red · ΔE 24.9 Tomato · ΔE 25.1 Firebrick · ΔE 29.4 Orange red · ΔE 30 Brown · ΔE 37.2

Nearest named CSS colourCrimson (#DC143C)ΔE 14.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FFC2

Analogous#FF00BD, #FF4200

Triadic#3DFF00, #003DFF

Split complementary#00FF42, #00BDFF

Tetradic#BDFF00, #00FFC2, #4200FF

Tints, shades & saturation

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

Lighter +40%#FFCCD8

Lighter +30%#FF99B1

Lighter +20%#FF668B

Lighter +10%#FF3364

Darker −10%#CC0031

Darker −20%#990025

Darker −30%#660018

Darker −40%#33000C

More saturated +25%#FF003D

Less saturated −25%#DF204E

Channel breakdown

R255

B61

Red255 (100%)

Green0 (0%)

Blue61 (23.9%)

Hue345.65°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 00 · B 3D

Keep nerding

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

#FF003D

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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