Recognised as Colour

#D30B00

#D30B00
Red
Dark
Nearest: Orange red

#D30B00 is a red with RGB values 211, 11, 0 and HSL 3°, 100%, 41%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#D30B00#D30B00

HEX#D30B00

RGBrgb(211, 11, 0)

RGB (0–1)0.8275, 0.0431, 0

RGB percentages82.7%, 4.3%, 0%

HSLhsl(3.1, 100%, 41.4%)

HSV / HSBhsv(3.1, 100%, 82.7%)

CMYK0%, 94.8%, 100%, 17.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,830,912

CSS custom property--colour: #D30B00;

Brightness & contrast

Relative luminance0.14088WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.5:1

Contrast with white5.5:1WCAG normal text: AA

Contrast with black3.82:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#2CF4FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A4F00no red cones; affects about 1% of men; ΔE 74.7 from the original

Deuteranopia#877700no green cones; the most common form, about 1% of men; ΔE 73.4 from the original

Tritanopia#E90011no blue cones; rare, and affects men and women equally; ΔE 7.9 from the original

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

Contrast with white, large text5.5:1WCAG large text: AAA

Contrast with black, large text3.82:1WCAG large text: AA

Named colours

Orange red · ΔE 16.9 Red · ΔE 17.1 Tomato · ΔE 23.9 Firebrick · ΔE 24.8 Crimson · ΔE 25 Dark red · ΔE 29.3

Nearest named CSS colourOrange red (#FF4500)ΔE 16.94, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C8D3

Analogous#D3005F, #D37500

Triadic#00D30B, #0B00D3

Split complementary#00D375, #005ED3

Tetradic#5ED300, #00C8D3, #7500D3

Tints, shades & saturation

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

Lighter +40%#FFA5A0

Lighter +30%#FF756D

Lighter +20%#FF443A

Lighter +10%#FF1407

Darker −10%#A00800

Darker −20%#6D0600

Darker −30%#3A0300

Darker −40%#070000

More saturated +25%#D30B00

Less saturated −25%#B9231A

Channel breakdown

R211

G11

Red211 (82.7%)

Green11 (4.3%)

Blue0 (0%)

Hue3.13°

Saturation (HSL)100%

Lightness41.37%

Dominant channelRed

Hex per channelR D3 · G 0B · B 00

Keep nerding

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

#D30B00

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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