Colour

#DD4400

#DD4400
Orange
Dark
Nearest: Orange red

#DD4400 is a orange with RGB values 221, 68, 0 and HSL 18°, 100%, 43%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#DD4400#DD4400

HEX#DD4400

HEX (short)#D40

RGBrgb(221, 68, 0)

RGB (0–1)0.8667, 0.2667, 0

RGB percentages86.7%, 26.7%, 0%

HSLhsl(18.5, 100%, 43.3%)

HSV / HSBhsv(18.5, 100%, 86.7%)

CMYK0%, 69.2%, 100%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,500,864

CSS custom property--colour: #DD4400;

Brightness & contrast

Relative luminance0.19506WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.9:1

Contrast with white4.28:1WCAG normal text: Fail

Contrast with black4.9:1WCAG normal text: AA

Greyscale equivalent#606060

Inverted#22BBFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#736400no red cones; affects about 1% of men; ΔE 63 from the original

Deuteranopia#988700no green cones; the most common form, about 1% of men; ΔE 63.2 from the original

Tritanopia#F4003Bno blue cones; rare, and affects men and women equally; ΔE 30.5 from the original

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

Contrast with white, large text4.28:1WCAG large text: AA

Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Orange red · ΔE 13.7 Tomato · ΔE 19.4 Chocolate · ΔE 21.7 Red · ΔE 23.2 Coral · ΔE 25 Firebrick · ΔE 27.7

Nearest named CSS colourOrange red (#FF4500)ΔE 13.74, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0099DD

Analogous#DD002B, #DDB300

Triadic#00DD44, #4400DD

Split complementary#00DDB2, #002BDD

Tetradic#2BDD00, #0099DD, #B200DD

Tints, shades & saturation

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

Lighter +40%#FFC4AA

Lighter +30%#FFA177

Lighter +20%#FF7E44

Lighter +10%#FF5A11

Darker −10%#AA3400

Darker −20%#772500

Darker −30%#441500

Darker −40%#110500

More saturated +25%#DD4400

Less saturated −25%#C14F1C

Channel breakdown

R221

G68

Red221 (86.7%)

Green68 (26.7%)

Blue0 (0%)

Hue18.46°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 44 · B 00

Keep nerding

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#DD4400

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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