Colour

#B11E1E

#B11E1E
Red
Dark
Nearest: Firebrick

#B11E1E is a red with RGB values 177, 30, 30 and HSL 0°, 71%, 41%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B11E1E#B11E1E

HEX#B11E1E

RGBrgb(177, 30, 30)

RGB (0–1)0.6941, 0.1176, 0.1176

RGB percentages69.4%, 11.8%, 11.8%

HSLhsl(0, 71%, 40.6%)

HSV / HSBhsv(0, 83.1%, 69.4%)

CMYK0%, 83.1%, 83.1%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,607,582

CSS custom property--colour: #B11E1E;

Brightness & contrast

Relative luminance0.10369WCAG 2.x, 0 is black and 1 is white

Perceived brightness100 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.83:1

Contrast with white6.83:1WCAG normal text: AA

Contrast with black3.07:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#4EE1E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F461Cno red cones; affects about 1% of men; ΔE 60.9 from the original

Deuteranopia#726616no green cones; the most common form, about 1% of men; ΔE 61.4 from the original

Tritanopia#C30021no blue cones; rare, and affects men and women equally; ΔE 9.8 from the original

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

Contrast with white, large text6.83:1WCAG large text: AAA

Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Firebrick · ΔE 1.8 Brown · ΔE 11.1 Dark red · ΔE 12 Maroon · ΔE 15.6 Crimson · ΔE 17.6 Tomato · ΔE 24.8

Nearest named CSS colourFirebrick (#B22222)ΔE 1.77, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1EB1B1

Analogous#B11E68, #B1681E

Triadic#1EB11E, #1E1EB1

Split complementary#1EB168, #1E68B1

Tetradic#68B11E, #1EB1B1, #681EB1

Tints, shades & saturation

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

Lighter +40%#F1AAAA

Lighter +30%#E97F7F

Lighter +20%#E25353

Lighter +10%#DA2828

Darker −10%#851717

Darker −20%#5A0F0F

Darker −30%#2E0808

Darker −40%#030000

More saturated +25%#CB0404

Less saturated −25%#973838

Channel breakdown

R177

G30

B30

Red177 (69.4%)

Green30 (11.8%)

Blue30 (11.8%)

Hue0°

Saturation (HSL)71.01%

Lightness40.59%

Dominant channelRed

Hex per channelR B1 · G 1E · B 1E

Keep nerding

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

#B11E1E

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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