Colour

#FF010D

#FF010D
Red
Dark
Nearest: Red

#FF010D is a red with RGB values 255, 1, 13 and HSL 357°, 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 Red.

Colour values

#FF010D#FF010D

HEX#FF010D

RGBrgb(255, 1, 13)

RGB (0–1)1, 0.0039, 0.051

RGB percentages100%, 0.4%, 5.1%

HSLhsl(357.2, 100%, 50.2%)

HSV / HSBhsv(357.2, 99.6%, 100%)

CMYK0%, 99.6%, 94.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,949

CSS custom property--colour: #FF010D;

Brightness & contrast

Relative luminance0.21311WCAG 2.x, 0 is black and 1 is white

Perceived brightness139.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.26:1

Contrast with white3.99:1WCAG normal text: Fail

Contrast with black5.26:1WCAG normal text: AA

Greyscale equivalent#383838

Inverted#00FEF2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D5F01no red cones; affects about 1% of men; ΔE 86.3 from the original

Deuteranopia#A39000no green cones; the most common form, about 1% of men; ΔE 85.7 from the original

Tritanopia#FF0012no blue cones; rare, and affects men and women equally; ΔE 1.5 from the original

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

Contrast with white, large text3.99:1WCAG large text: AA

Contrast with black, large text5.26:1WCAG large text: AAA

Named colours

Red · ΔE 3.2 Orange red · ΔE 13.9 Tomato · ΔE 29.8 Crimson · ΔE 32.4 Firebrick · ΔE 38.5 Coral · ΔE 41

Nearest named CSS colourRed (#FF0000)ΔE 3.17, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01FFF3

Analogous#FF018C, #FF7401

Triadic#0DFF01, #010DFF

Split complementary#01FF74, #018CFF

Tetradic#8CFF01, #01FFF3, #7401FF

Tints, shades & saturation

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

Lighter +40%#FFCDCF

Lighter +30%#FF9A9F

Lighter +20%#FF676E

Lighter +10%#FF343E

Darker −10%#CD000A

Darker −20%#9A0007

Darker −30%#670005

Darker −40%#340002

More saturated +25%#FF010D

Less saturated −25%#DF212A

Channel breakdown

R255

B13

Red255 (100%)

Green1 (0.4%)

Blue13 (5.1%)

Hue357.17°

Saturation (HSL)100%

Lightness50.2%

Dominant channelRed

Hex per channelR FF · G 01 · B 0D

Keep nerding

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

#FF010D

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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