Colour

#FF5A00

#FF5A00
Orange
Dark
Nearest: Orange red

#FF5A00 is a orange with RGB values 255, 90, 0 and HSL 21°, 100%, 50%. 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

#FF5A00#FF5A00

HEX#FF5A00

RGBrgb(255, 90, 0)

RGB (0–1)1, 0.3529, 0

RGB percentages100%, 35.3%, 0%

HSLhsl(21.2, 100%, 50%)

HSV / HSBhsv(21.2, 100%, 100%)

CMYK0%, 64.7%, 100%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,734,720

CSS custom property--colour: #FF5A00;

Brightness & contrast

Relative luminance0.28572WCAG 2.x, 0 is black and 1 is white

Perceived brightness155.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.71:1

Contrast with white3.13:1WCAG normal text: Fail

Contrast with black6.71:1WCAG normal text: AA

Greyscale equivalent#777777

Inverted#00A5FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8B7A00no red cones; affects about 1% of men; ΔE 66.6 from the original

Deuteranopia#B49F00no green cones; the most common form, about 1% of men; ΔE 66 from the original

Tritanopia#FF234Eno blue cones; rare, and affects men and women equally; ΔE 40.7 from the original

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

Contrast with white, large text3.13:1WCAG large text: AA

Contrast with black, large text6.71:1WCAG large text: AAA

Named colours

Orange red · ΔE 8.3 Red · ΔE 21.5 Tomato · ΔE 24.1 Dark orange · ΔE 25.5 Chocolate · ΔE 27.1 Coral · ΔE 28

Nearest named CSS colourOrange red (#FF4500)ΔE 8.33, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A5FF

Analogous#FF0025, #FFDA00

Triadic#00FF5A, #5A00FF

Split complementary#00FFDA, #0025FF

Tetradic#25FF00, #00A5FF, #DA00FF

Tints, shades & saturation

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

Lighter +40%#FFDECC

Lighter +30%#FFBD99

Lighter +20%#FF9C66

Lighter +10%#FF7B33

Darker −10%#CC4800

Darker −20%#993600

Darker −30%#662400

Darker −40%#331200

More saturated +25%#FF5A00

Less saturated −25%#DF6320

Channel breakdown

R255

G90

Red255 (100%)

Green90 (35.3%)

Blue0 (0%)

Hue21.18°

Saturation (HSL)100%

Lightness50%

Dominant channelRed

Hex per channelR FF · G 5A · B 00

Keep nerding

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

#FF5A00

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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