Colour

#280F09

#280F09
Red
Dark
Nearest: Black

#280F09 is a red with RGB values 40, 15, 9 and HSL 12°, 63%, 10%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#280F09#280F09

HEX#280F09

RGBrgb(40, 15, 9)

RGB (0–1)0.1569, 0.0588, 0.0353

RGB percentages15.7%, 5.9%, 3.5%

HSLhsl(11.6, 63.3%, 9.6%)

HSV / HSBhsv(11.6, 77.5%, 15.7%)

CMYK0%, 62.5%, 77.5%, 84.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,625,289

CSS custom property--colour: #280F09;

Brightness & contrast

Relative luminance0.00812WCAG 2.x, 0 is black and 1 is white

Perceived brightness24.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.06:1

Contrast with white18.06:1WCAG normal text: AAA

Contrast with black1.16:1WCAG normal text: Fail

Greyscale equivalent#141414

Inverted#D7F0F6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#151308no red cones; affects about 1% of men; ΔE 13.6 from the original

Deuteranopia#1B1809no green cones; the most common form, about 1% of men; ΔE 13.7 from the original

Tritanopia#2D0A0Eno blue cones; rare, and affects men and women equally; ΔE 6.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.06:1WCAG large text: AAA

Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 16.2 Dark slate grey · ΔE 35.7 Dim grey · ΔE 39.8 Saddle brown · ΔE 47.2 Gray · ΔE 48.5 Sienna · ΔE 49.1

Nearest named CSS colourBlack (#000000)ΔE 16.21, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#092228

Analogous#280913, #281F09

Triadic#09280F, #0F0928

Split complementary#09281F, #091228

Tetradic#122809, #092228, #1E0928

Tints, shades & saturation

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

Lighter +40%#CF4D2E

Lighter +30%#A53E25

Lighter +20%#7B2E1C

Lighter +10%#521F12

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2E0B03

Less saturated −25%#22130F

Channel breakdown

R40

G15

Red40 (15.7%)

Green15 (5.9%)

Blue9 (3.5%)

Hue11.61°

Saturation (HSL)63.27%

Lightness9.61%

Dominant channelRed

Hex per channelR 28 · G 0F · B 09

Keep nerding

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

#280F09

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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