Recognised as Colour

#DD1300

#DD1300
Red
Dark
Nearest: Red

#DD1300 is a red with RGB values 221, 19, 0 and HSL 5°, 100%, 43%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#DD1300#DD1300

HEX#DD1300

RGBrgb(221, 19, 0)

RGB (0–1)0.8667, 0.0745, 0

RGB percentages86.7%, 7.5%, 0%

HSLhsl(5.2, 100%, 43.3%)

HSV / HSBhsv(5.2, 100%, 86.7%)

CMYK0%, 91.4%, 100%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,488,320

CSS custom property--colour: #DD1300;

Brightness & contrast

Relative luminance0.15838WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.04:1

Contrast with white5.04:1WCAG normal text: AA

Contrast with black4.17:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#22ECFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605400no red cones; affects about 1% of men; ΔE 76.4 from the original

Deuteranopia#8E7E00no green cones; the most common form, about 1% of men; ΔE 75.6 from the original

Tritanopia#F40016no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original

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

Contrast with white, large text5.04:1WCAG large text: AAA

Contrast with black, large text4.17:1WCAG large text: AA

Named colours

Red · ΔE 13.7 Orange red · ΔE 13.9 Tomato · ΔE 24.2 Crimson · ΔE 27 Firebrick · ΔE 28 Dark red · ΔE 32.9

Nearest named CSS colourRed (#FF0000)ΔE 13.65, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00CADD

Analogous#DD005C, #DD8200

Triadic#00DD13, #1300DD

Split complementary#00DD82, #005BDD

Tetradic#5CDD00, #00CADD, #8100DD

Tints, shades & saturation

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

Lighter +40%#FFB1AA

Lighter +30%#FF8377

Lighter +20%#FF5444

Lighter +10%#FF2511

Darker −10%#AA0F00

Darker −20%#770A00

Darker −30%#440600

Darker −40%#110100

More saturated +25%#DD1300

Less saturated −25%#C12A1C

Channel breakdown

R221

G19

Red221 (86.7%)

Green19 (7.5%)

Blue0 (0%)

Hue5.16°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 13 · B 00

Keep nerding

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

#DD1300

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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