Recognised as Colour

#660F2F

#660F2F
Red
Dark
Nearest: Brown

#660F2F is a red with RGB values 102, 15, 47 and HSL 338°, 74%, 23%. It is a dark colour, so white text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#660F2F#660F2F

HEX#660F2F

RGBrgb(102, 15, 47)

RGB (0–1)0.4, 0.0588, 0.1843

RGB percentages40%, 5.9%, 18.4%

HSLhsl(337.9, 74.4%, 22.9%)

HSV / HSBhsv(337.9, 85.3%, 40%)

CMYK0%, 85.3%, 53.9%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,688,559

CSS custom property--colour: #660F2F;

Brightness & contrast

Relative luminance0.03372WCAG 2.x, 0 is black and 1 is white

Perceived brightness59.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.54:1

Contrast with white12.54:1WCAG normal text: AAA

Contrast with black1.67:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#99F0D0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#262930no red cones; affects about 1% of men; ΔE 40.2 from the original

Deuteranopia#3D3A2Dno green cones; the most common form, about 1% of men; ΔE 41 from the original

Tritanopia#70001Dno blue cones; rare, and affects men and women equally; ΔE 14.7 from the original

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

Contrast with white, large text12.54:1WCAG large text: AAA

Contrast with black, large text1.67:1WCAG large text: Fail

Named colours

Brown · ΔE 32.6 Maroon · ΔE 35.3 Indian red · ΔE 37.1 Dark red · ΔE 39.5 Pale violetred · ΔE 39.7 Sienna · ΔE 39.9

Nearest named CSS colourBrown (#A52A2A)ΔE 32.61, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F6646

Analogous#660F5B, #661A0F

Triadic#2F660F, #0F2F66

Split complementary#0F661A, #0F5B66

Tetradic#5B660F, #0F6646, #1A0F66

Tints, shades & saturation

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

Lighter +40%#E75A8E

Lighter +30%#E02E6F

Lighter +20%#BF1C58

Lighter +10%#921643

Darker −10%#3A081B

Darker −20%#0D0206

Darker −30%#000000

Darker −40%#000000

More saturated +25%#75002B

Less saturated −25%#571E33

Channel breakdown

R102

G15

B47

Red102 (40%)

Green15 (5.9%)

Blue47 (18.4%)

Hue337.93°

Saturation (HSL)74.36%

Lightness22.94%

Dominant channelRed

Hex per channelR 66 · G 0F · B 2F

Keep nerding

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

#660F2F

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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