Colour

#B23519

#B23519
Red
Dark
Nearest: Firebrick

#B23519 is a red with RGB values 178, 53, 25 and HSL 11°, 75%, 40%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B23519#B23519

HEX#B23519

RGBrgb(178, 53, 25)

RGB (0–1)0.698, 0.2078, 0.098

RGB percentages69.8%, 20.8%, 9.8%

HSLhsl(11, 75.4%, 39.8%)

HSV / HSBhsv(11, 86%, 69.8%)

CMYK0%, 70.2%, 86%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,679,001

CSS custom property--colour: #B23519;

Brightness & contrast

Relative luminance0.12081WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.15:1

Contrast with white6.15:1WCAG normal text: AA

Contrast with black3.42:1WCAG normal text: Fail

Greyscale equivalent#4E4E4E

Inverted#4DCAE6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A5014no red cones; affects about 1% of men; ΔE 54 from the original

Deuteranopia#796C11no green cones; the most common form, about 1% of men; ΔE 54.3 from the original

Tritanopia#C40030no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

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

Contrast with white, large text6.15:1WCAG large text: AAA

Contrast with black, large text3.42:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.7 Dark red · ΔE 13.7 Brown · ΔE 14.3 Maroon · ΔE 17.1 Sienna · ΔE 21.9 Tomato · ΔE 22.7

Nearest named CSS colourFirebrick (#B22222)ΔE 9.7, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1996B2

Analogous#B21949, #B28219

Triadic#19B235, #3519B2

Split complementary#19B282, #1949B2

Tetradic#49B219, #1996B2, #8219B2

Tints, shades & saturation

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

Lighter +40%#F2B3A5

Lighter +30%#EC8D78

Lighter +20%#E6684B

Lighter +10%#DF421F

Darker −10%#852813

Darker −20%#591A0C

Darker −30%#2C0D06

Darker −40%#000000

More saturated +25%#CB2500

Less saturated −25%#994532

Channel breakdown

R178

G53

B25

Red178 (69.8%)

Green53 (20.8%)

Blue25 (9.8%)

Hue10.98°

Saturation (HSL)75.37%

Lightness39.8%

Dominant channelRed

Hex per channelR B2 · G 35 · B 19

Keep nerding

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

#B23519

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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