Recognised as Colour

#640D2E

#640D2E
Red
Dark
Nearest: Brown

#640D2E is a red with RGB values 100, 13, 46 and HSL 337°, 77%, 22%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#640D2E#640D2E

HEX#640D2E

RGBrgb(100, 13, 46)

RGB (0–1)0.3922, 0.051, 0.1804

RGB percentages39.2%, 5.1%, 18%

HSLhsl(337.2, 77%, 22.2%)

HSV / HSBhsv(337.2, 87%, 39.2%)

CMYK0%, 87%, 54%, 60.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,556,974

CSS custom property--colour: #640D2E;

Brightness & contrast

Relative luminance0.03194WCAG 2.x, 0 is black and 1 is white

Perceived brightness57.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.81:1

Contrast with white12.81:1WCAG normal text: AAA

Contrast with black1.64:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#9BF2D1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#24272Fno red cones; affects about 1% of men; ΔE 39.9 from the original

Deuteranopia#3B382Cno green cones; the most common form, about 1% of men; ΔE 40.6 from the original

Tritanopia#6E001Cno blue cones; rare, and affects men and women equally; ΔE 14.9 from the original

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

Contrast with white, large text12.81:1WCAG large text: AAA

Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Brown · ΔE 33.2 Maroon · ΔE 35.7 Indian red · ΔE 37.8 Dark red · ΔE 40 Pale violetred · ΔE 40.4 Sienna · ΔE 40.5

Nearest named CSS colourBrown (#A52A2A)ΔE 33.23, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0D6443

Analogous#640D59, #64170D

Triadic#2E640D, #0D2E64

Split complementary#0D6417, #0D5964

Tetradic#5A640D, #0D6443, #180D64

Tints, shades & saturation

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

Lighter +40%#E9548D

Lighter +30%#E3276E

Lighter +20%#BE1958

Lighter +10%#911343

Darker −10%#370719

Darker −20%#0A0104

Darker −30%#000000

Darker −40%#000000

More saturated +25%#71002B

Less saturated −25%#561B31

Channel breakdown

R100

G13

B46

Red100 (39.2%)

Green13 (5.1%)

Blue46 (18%)

Hue337.24°

Saturation (HSL)76.99%

Lightness22.16%

Dominant channelRed

Hex per channelR 64 · G 0D · B 2E

Keep nerding

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

#640D2E

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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