Colour

#A10038

#A10038
Red
Dark
Nearest: Brown

#A10038 is a red with RGB values 161, 0, 56 and HSL 339°, 100%, 32%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A10038#A10038

HEX#A10038

RGBrgb(161, 0, 56)

RGB (0–1)0.6314, 0, 0.2196

RGB percentages63.1%, 0%, 22%

HSLhsl(339.1, 100%, 31.6%)

HSV / HSBhsv(339.1, 100%, 63.1%)

CMYK0%, 100%, 65.2%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,551,352

CSS custom property--colour: #A10038;

Brightness & contrast

Relative luminance0.07863WCAG 2.x, 0 is black and 1 is white

Perceived brightness90 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.16:1

Contrast with white8.16:1WCAG normal text: AAA

Contrast with black2.57:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#5EFFC7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D3C38no red cones; affects about 1% of men; ΔE 61.1 from the original

Deuteranopia#625A34no green cones; the most common form, about 1% of men; ΔE 61.7 from the original

Tritanopia#B1001Fno blue cones; rare, and affects men and women equally; ΔE 20.7 from the original

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

Contrast with white, large text8.16:1WCAG large text: AAA

Contrast with black, large text2.57:1WCAG large text: Fail

Named colours

Brown · ΔE 16.7 Firebrick · ΔE 21.7 Indian red · ΔE 24.5 Crimson · ΔE 24.8 Maroon · ΔE 25 Dark red · ΔE 26.2

Nearest named CSS colourBrown (#A52A2A)ΔE 16.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A169

Analogous#A10088, #A11800

Triadic#38A100, #0038A1

Split complementary#00A118, #0088A1

Tetradic#89A100, #00A169, #1900A1

Tints, shades & saturation

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

Lighter +40%#FF6EA0

Lighter +30%#FF3B7F

Lighter +20%#FF085E

Lighter +10%#D4004A

Darker −10%#6E0026

Darker −20%#3B0015

Darker −30%#080003

Darker −40%#000000

More saturated +25%#A10038

Less saturated −25%#8D143E

Channel breakdown

R161

B56

Red161 (63.1%)

Green0 (0%)

Blue56 (22%)

Hue339.13°

Saturation (HSL)100%

Lightness31.57%

Dominant channelRed

Hex per channelR A1 · G 00 · B 38

Keep nerding

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

#A10038

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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