Colour

#FF1017

#FF1017
Red
Dark
Nearest: Red

#FF1017 is a red with RGB values 255, 16, 23 and HSL 358°, 100%, 53%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF1017#FF1017

HEX#FF1017

RGBrgb(255, 16, 23)

RGB (0–1)1, 0.0627, 0.0902

RGB percentages100%, 6.3%, 9%

HSLhsl(358.2, 100%, 53.1%)

HSV / HSBhsv(358.2, 93.7%, 100%)

CMYK0%, 93.7%, 91%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,715,799

CSS custom property--colour: #FF1017;

Brightness & contrast

Relative luminance0.21692WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.34:1

Contrast with white3.93:1WCAG normal text: Fail

Contrast with black5.34:1WCAG normal text: AA

Greyscale equivalent#434343

Inverted#00EFE8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E610Fno red cones; affects about 1% of men; ΔE 85.6 from the original

Deuteranopia#A49100no green cones; the most common form, about 1% of men; ΔE 84.9 from the original

Tritanopia#FF001Bno blue cones; rare, and affects men and women equally; ΔE 2.2 from the original

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

Contrast with white, large text3.93:1WCAG large text: AA

Contrast with black, large text5.34:1WCAG large text: AAA

Named colours

Red · ΔE 6.2 Orange red · ΔE 14.3 Tomato · ΔE 27.2 Crimson · ΔE 29.4 Firebrick · ΔE 36.1 Coral · ΔE 38.9

Nearest named CSS colourRed (#FF0000)ΔE 6.21, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10FFF8

Analogous#FF108F, #FF8110

Triadic#17FF10, #1017FF

Split complementary#10FF80, #108FFF

Tetradic#8EFF10, #10FFF8, #8010FF

Tints, shades & saturation

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

Lighter +40%#FFDCDD

Lighter +30%#FFA9AC

Lighter +20%#FF767A

Lighter +10%#FF4349

Darker −10%#DC0006

Darker −20%#A90005

Darker −30%#760003

Darker −40%#430002

More saturated +25%#FF1017

Less saturated −25%#E12E33

Channel breakdown

R255

G16

B23

Red255 (100%)

Green16 (6.3%)

Blue23 (9%)

Hue358.24°

Saturation (HSL)100%

Lightness53.14%

Dominant channelRed

Hex per channelR FF · G 10 · B 17

Keep nerding

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#FF1017

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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