Colour

#FF5812

#FF5812
Orange
Dark
Nearest: Orange red

#FF5812 is a orange with RGB values 255, 88, 18 and HSL 18°, 100%, 54%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF5812#FF5812

HEX#FF5812

RGBrgb(255, 88, 18)

RGB (0–1)1, 0.3451, 0.0706

RGB percentages100%, 34.5%, 7.1%

HSLhsl(17.7, 100%, 53.5%)

HSV / HSBhsv(17.7, 92.9%, 100%)

CMYK0%, 65.5%, 92.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,734,226

CSS custom property--colour: #FF5812;

Brightness & contrast

Relative luminance0.28283WCAG 2.x, 0 is black and 1 is white

Perceived brightness155 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.66:1

Contrast with white3.15:1WCAG normal text: Fail

Contrast with black6.66:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#00A7ED

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8A7900no red cones; affects about 1% of men; ΔE 66.9 from the original

Deuteranopia#B39F00no green cones; the most common form, about 1% of men; ΔE 67.4 from the original

Tritanopia#FF1E4Dno blue cones; rare, and affects men and women equally; ΔE 37.2 from the original

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

Contrast with white, large text3.15:1WCAG large text: AA

Contrast with black, large text6.66:1WCAG large text: AAA

Named colours

Orange red · ΔE 7.6 Red · ΔE 20.3 Tomato · ΔE 20.6 Coral · ΔE 25.8 Chocolate · ΔE 26.3 Dark orange · ΔE 27.4

Nearest named CSS colourOrange red (#FF4500)ΔE 7.59, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12B9FF

Analogous#FF1243, #FFCE12

Triadic#12FF58, #5812FF

Split complementary#12FFCF, #1242FF

Tetradic#43FF12, #12B9FF, #CF12FF

Tints, shades & saturation

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

Lighter +40%#FFE8DE

Lighter +30%#FFC4AB

Lighter +20%#FFA078

Lighter +10%#FF7C45

Darker −10%#DE4200

Darker −20%#AB3300

Darker −30%#782300

Darker −40%#451400

More saturated +25%#FF5812

Less saturated −25%#E16430

Channel breakdown

R255

G88

B18

Red255 (100%)

Green88 (34.5%)

Blue18 (7.1%)

Hue17.72°

Saturation (HSL)100%

Lightness53.53%

Dominant channelRed

Hex per channelR FF · G 58 · B 12

Keep nerding

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#FF5812

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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