Recognised as Colour

#57102F

#57102F
Red
Dark
Nearest: Black

#57102F is a red with RGB values 87, 16, 47 and HSL 334°, 69%, 20%. It is a dark colour, so white text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#57102F#57102F

HEX#57102F

RGBrgb(87, 16, 47)

RGB (0–1)0.3412, 0.0627, 0.1843

RGB percentages34.1%, 6.3%, 18.4%

HSLhsl(333.8, 68.9%, 20.2%)

HSV / HSBhsv(333.8, 81.6%, 34.1%)

CMYK0%, 81.6%, 46%, 65.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,705,775

CSS custom property--colour: #57102F;

Brightness & contrast

Relative luminance0.02602WCAG 2.x, 0 is black and 1 is white

Perceived brightness51.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.81:1

Contrast with white13.81:1WCAG normal text: AAA

Contrast with black1.52:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#A8EFD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#202430no red cones; affects about 1% of men; ΔE 33.9 from the original

Deuteranopia#33322Dno green cones; the most common form, about 1% of men; ΔE 35.4 from the original

Tritanopia#5F051Eno blue cones; rare, and affects men and women equally; ΔE 13.3 from the original

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

Contrast with white, large text13.81:1WCAG large text: AAA

Contrast with black, large text1.52:1WCAG large text: Fail

Named colours

Black · ΔE 39 Brown · ΔE 39.8 Maroon · ΔE 41.8 Indian red · ΔE 43.1 Dim grey · ΔE 43.2 Pale violetred · ΔE 43.6

Nearest named CSS colourBlack (#000000)ΔE 39.03, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#105738

Analogous#571052, #571410

Triadic#2F5710, #102F57

Split complementary#105715, #105257

Tetradic#535710, #105738, #151057

Tints, shades & saturation

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

Lighter +40%#DF5491

Lighter +30%#D82875

Lighter +20%#AD205E

Lighter +10%#821846

Darker −10%#2C0818

Darker −20%#010000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#64032D

Less saturated −25%#4A1D31

Channel breakdown

R87

G16

B47

Red87 (34.1%)

Green16 (6.3%)

Blue47 (18.4%)

Hue333.8°

Saturation (HSL)68.93%

Lightness20.2%

Dominant channelRed

Hex per channelR 57 · G 10 · B 2F

Keep nerding

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

#57102F

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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