Recognised as Colour

#581D24

#581D24
Red
Dark
Nearest: Brown

#581D24 is a red with RGB values 88, 29, 36 and HSL 353°, 50%, 23%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#581D24#581D24

HEX#581D24

RGBrgb(88, 29, 36)

RGB (0–1)0.3451, 0.1137, 0.1412

RGB percentages34.5%, 11.4%, 14.1%

HSLhsl(352.9, 50.4%, 22.9%)

HSV / HSBhsv(352.9, 67%, 34.5%)

CMYK0%, 67%, 59.1%, 65.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,774,628

CSS custom property--colour: #581D24;

Brightness & contrast

Relative luminance0.03081WCAG 2.x, 0 is black and 1 is white

Perceived brightness54.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.99:1

Contrast with white12.99:1WCAG normal text: AAA

Contrast with black1.62:1WCAG normal text: Fail

Greyscale equivalent#2A2A2A

Inverted#A7E2DB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2B2924no red cones; affects about 1% of men; ΔE 29 from the original

Deuteranopia#3A3623no green cones; the most common form, about 1% of men; ΔE 29.8 from the original

Tritanopia#611320no blue cones; rare, and affects men and women equally; ΔE 8.1 from the original

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

Contrast with white, large text12.99:1WCAG large text: AAA

Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Brown · ΔE 34.7 Sienna · ΔE 34.9 Maroon · ΔE 35.1 Saddle brown · ΔE 35.6 Black · ΔE 35.9 Dim grey · ΔE 38.1

Nearest named CSS colourBrown (#A52A2A)ΔE 34.66, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D5851

Analogous#581D41, #58341D

Triadic#24581D, #1D2458

Split complementary#1D5834, #1D4158

Tetradic#41581D, #1D5851, #341D58

Tints, shades & saturation

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

Lighter +40%#D0717C

Lighter +30%#C44A59

Lighter +20%#A53643

Lighter +10%#7E2A34

Darker −10%#321014

Darker −20%#0B0405

Darker −30%#000000

Darker −40%#000000

More saturated +25%#670E19

Less saturated −25%#492C2F

Channel breakdown

R88

G29

B36

Red88 (34.5%)

Green29 (11.4%)

Blue36 (14.1%)

Hue352.88°

Saturation (HSL)50.43%

Lightness22.94%

Dominant channelRed

Hex per channelR 58 · G 1D · B 24

Keep nerding

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

#581D24

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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