Colour

#B72A01

#B72A01
Red
Dark
Nearest: Firebrick

#B72A01 is a red with RGB values 183, 42, 1 and HSL 14°, 99%, 36%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B72A01#B72A01

HEX#B72A01

RGBrgb(183, 42, 1)

RGB (0–1)0.7176, 0.1647, 0.0039

RGB percentages71.8%, 16.5%, 0.4%

HSLhsl(13.5, 98.9%, 36.1%)

HSV / HSBhsv(13.5, 99.5%, 71.8%)

CMYK0%, 77%, 99.5%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,003,841

CSS custom property--colour: #B72A01;

Brightness & contrast

Relative luminance0.11725WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.28:1

Contrast with white6.28:1WCAG normal text: AA

Contrast with black3.35:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#48D5FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#574C00no red cones; affects about 1% of men; ΔE 59.7 from the original

Deuteranopia#7A6B00no green cones; the most common form, about 1% of men; ΔE 58.7 from the original

Tritanopia#CA0025no blue cones; rare, and affects men and women equally; ΔE 18.2 from the original

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

Contrast with white, large text6.28:1WCAG large text: AAA

Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Firebrick · ΔE 15.7 Dark red · ΔE 17.7 Maroon · ΔE 22.4 Tomato · ΔE 22.7 Brown · ΔE 23.3 Chocolate · ΔE 23.4

Nearest named CSS colourFirebrick (#B22222)ΔE 15.65, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#018EB7

Analogous#B70133, #B78501

Triadic#01B72A, #2A01B7

Split complementary#01B785, #0133B7

Tetradic#33B701, #018EB7, #8501B7

Tints, shades & saturation

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

Lighter +40%#FEA186

Lighter +30%#FE7953

Lighter +20%#FE5220

Lighter +10%#EA3601

Darker −10%#841E01

Darker −20%#521300

Darker −30%#1F0700

Darker −40%#000000

More saturated +25%#B82900

Less saturated −25%#A03718

Channel breakdown

R183

G42

Red183 (71.8%)

Green42 (16.5%)

Blue1 (0.4%)

Hue13.52°

Saturation (HSL)98.91%

Lightness36.08%

Dominant channelRed

Hex per channelR B7 · G 2A · B 01

Keep nerding

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

#B72A01

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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