Colour

#DD3F00

#DD3F00
Orange
Dark
Nearest: Orange red

#DD3F00 is a orange with RGB values 221, 63, 0 and HSL 17°, 100%, 43%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#DD3F00#DD3F00

HEX#DD3F00

RGBrgb(221, 63, 0)

RGB (0–1)0.8667, 0.2471, 0

RGB percentages86.7%, 24.7%, 0%

HSLhsl(17.1, 100%, 43.3%)

HSV / HSBhsv(17.1, 100%, 86.7%)

CMYK0%, 71.5%, 100%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,499,584

CSS custom property--colour: #DD3F00;

Brightness & contrast

Relative luminance0.18927WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.79:1

Contrast with white4.39:1WCAG normal text: Fail

Contrast with black4.79:1WCAG normal text: AA

Greyscale equivalent#5C5C5C

Inverted#22C0FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706200no red cones; affects about 1% of men; ΔE 65.2 from the original

Deuteranopia#978500no green cones; the most common form, about 1% of men; ΔE 64.4 from the original

Tritanopia#F40037no blue cones; rare, and affects men and women equally; ΔE 27.3 from the original

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

Contrast with white, large text4.39:1WCAG large text: AA

Contrast with black, large text4.79:1WCAG large text: AAA

Named colours

Orange red · ΔE 12.9 Tomato · ΔE 19.6 Red · ΔE 21.6 Chocolate · ΔE 23.5 Coral · ΔE 26.2 Firebrick · ΔE 27.3

Nearest named CSS colourOrange red (#FF4500)ΔE 12.93, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#009EDD

Analogous#DD0030, #DDAE00

Triadic#00DD3F, #3F00DD

Split complementary#00DDAE, #002FDD

Tetradic#2FDD00, #009EDD, #AD00DD

Tints, shades & saturation

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

Lighter +40%#FFC2AA

Lighter +30%#FF9E77

Lighter +20%#FF7944

Lighter +10%#FF5511

Darker −10%#AA3000

Darker −20%#772200

Darker −30%#441300

Darker −40%#110500

More saturated +25%#DD3F00

Less saturated −25%#C14B1C

Channel breakdown

R221

G63

Red221 (86.7%)

Green63 (24.7%)

Blue0 (0%)

Hue17.1°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 3F · B 00

Keep nerding

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

#DD3F00

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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