Colour

#A50F2B

#A50F2B
Red
Dark
Nearest: Brown

#A50F2B is a red with RGB values 165, 15, 43 and HSL 349°, 83%, 35%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A50F2B#A50F2B

HEX#A50F2B

RGBrgb(165, 15, 43)

RGB (0–1)0.6471, 0.0588, 0.1686

RGB percentages64.7%, 5.9%, 16.9%

HSLhsl(348.8, 83.3%, 35.3%)

HSV / HSBhsv(348.8, 90.9%, 64.7%)

CMYK0%, 90.9%, 73.9%, 35.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,817,323

CSS custom property--colour: #A50F2B;

Brightness & contrast

Relative luminance0.08515WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.77:1

Contrast with white7.77:1WCAG normal text: AAA

Contrast with black2.7:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#5AF0D4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443F2Bno red cones; affects about 1% of men; ΔE 60.6 from the original

Deuteranopia#675D26no green cones; the most common form, about 1% of men; ΔE 60.8 from the original

Tritanopia#B6001Dno blue cones; rare, and affects men and women equally; ΔE 14.1 from the original

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

Contrast with white, large text7.77:1WCAG large text: AAA

Contrast with black, large text2.7:1WCAG large text: Fail

Named colours

Brown · ΔE 8.3 Firebrick · ΔE 11.4 Dark red · ΔE 16.9 Maroon · ΔE 17 Crimson · ΔE 19.6 Indian red · ΔE 22.5

Nearest named CSS colourBrown (#A52A2A)ΔE 8.3, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0FA589

Analogous#A50F76, #A53E0F

Triadic#2BA50F, #0F2BA5

Split complementary#0FA53E, #0F76A5

Tetradic#76A50F, #0FA589, #3E0FA5

Tints, shades & saturation

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

Lighter +40%#F58C9F

Lighter +30%#F05D78

Lighter +20%#EC2E51

Lighter +10%#D41337

Darker −10%#760B1F

Darker −20%#480713

Darker −30%#190206

Darker −40%#000000

More saturated +25%#B40022

Less saturated −25%#8F2639

Channel breakdown

R165

G15

B43

Red165 (64.7%)

Green15 (5.9%)

Blue43 (16.9%)

Hue348.8°

Saturation (HSL)83.33%

Lightness35.29%

Dominant channelRed

Hex per channelR A5 · G 0F · B 2B

Keep nerding

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

#A50F2B

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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