Recognised as Colour

#D01B00

#D01B00
Red
Dark
Nearest: Orange red

#D01B00 is a red with RGB values 208, 27, 0 and HSL 8°, 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

#D01B00#D01B00

HEX#D01B00

RGBrgb(208, 27, 0)

RGB (0–1)0.8157, 0.1059, 0

RGB percentages81.6%, 10.6%, 0%

HSLhsl(7.8, 100%, 40.8%)

HSV / HSBhsv(7.8, 100%, 81.6%)

CMYK0%, 87%, 100%, 18.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,638,400

CSS custom property--colour: #D01B00;

Brightness & contrast

Relative luminance0.14194WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.47:1

Contrast with white5.47:1WCAG normal text: AA

Contrast with black3.84:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#2FE4FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5000no red cones; affects about 1% of men; ΔE 71.2 from the original

Deuteranopia#877700no green cones; the most common form, about 1% of men; ΔE 70.3 from the original

Tritanopia#E6001Ano blue cones; rare, and affects men and women equally; ΔE 10.6 from the original

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

Contrast with white, large text5.47:1WCAG large text: AAA

Contrast with black, large text3.84:1WCAG large text: AA

Named colours

Orange red · ΔE 17.2 Red · ΔE 19.4 Tomato · ΔE 22.5 Firebrick · ΔE 23.1 Crimson · ΔE 25.2 Dark red · ΔE 27.5

Nearest named CSS colourOrange red (#FF4500)ΔE 17.19, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B5D0

Analogous#D0004D, #D08300

Triadic#00D01B, #1B00D0

Split complementary#00D083, #004DD0

Tetradic#4DD000, #00B5D0, #8300D0

Tints, shades & saturation

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

Lighter +40%#FFAA9D

Lighter +30%#FF7D6A

Lighter +20%#FF5137

Lighter +10%#FF2504

Darker −10%#9D1400

Darker −20%#6A0E00

Darker −30%#370700

Darker −40%#040100

More saturated +25%#D01B00

Less saturated −25%#B62E1A

Channel breakdown

R208

G27

Red208 (81.6%)

Green27 (10.6%)

Blue0 (0%)

Hue7.79°

Saturation (HSL)100%

Lightness40.78%

Dominant channelRed

Hex per channelR D0 · G 1B · B 00

Keep nerding

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

#D01B00

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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