Colour

#57002A

#57002A
Red
Dark
Nearest: Brown

#57002A is a red with RGB values 87, 0, 42 and HSL 331°, 100%, 17%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#57002A#57002A

HEX#57002A

RGBrgb(87, 0, 42)

RGB (0–1)0.3412, 0, 0.1647

RGB percentages34.1%, 0%, 16.5%

HSLhsl(331, 100%, 17.1%)

HSV / HSBhsv(331, 100%, 34.1%)

CMYK0%, 100%, 51.7%, 65.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,701,674

CSS custom property--colour: #57002A;

Brightness & contrast

Relative luminance0.02193WCAG 2.x, 0 is black and 1 is white

Perceived brightness49.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.6:1

Contrast with white14.6:1WCAG normal text: AAA

Contrast with black1.44:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#A8FFD5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#191E2Bno red cones; affects about 1% of men; ΔE 38.6 from the original

Deuteranopia#302E28no green cones; the most common form, about 1% of men; ΔE 39.6 from the original

Tritanopia#5F0015no blue cones; rare, and affects men and women equally; ΔE 17.5 from the original

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

Contrast with white, large text14.6:1WCAG large text: AAA

Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Brown · ΔE 38.6 Maroon · ΔE 40.2 Black · ΔE 42.2 Indian red · ΔE 43.4 Purple · ΔE 43.7 Dark red · ΔE 44.5

Nearest named CSS colourBrown (#A52A2A)ΔE 38.62, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00572D

Analogous#570055, #570200

Triadic#2A5700, #002A57

Split complementary#005701, #005657

Tetradic#565700, #00572D, #020057

Tints, shades & saturation

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

Lighter +40%#FF248E

Lighter +30%#F00074

Lighter +20%#BD005B

Lighter +10%#8A0043

Darker −10%#240011

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#57002A

Less saturated −25%#4C0B2A

Channel breakdown

R87

B42

Red87 (34.1%)

Green0 (0%)

Blue42 (16.5%)

Hue331.03°

Saturation (HSL)100%

Lightness17.06%

Dominant channelRed

Hex per channelR 57 · G 00 · B 2A

Keep nerding

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

#57002A

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

Nerdulate something else