Recognised as Colour

#FF5A03

#FF5A03
Orange
Dark
Nearest: Orange red

#FF5A03 is a orange with RGB values 255, 90, 3 and HSL 21°, 100%, 51%. 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

#FF5A03#FF5A03

HEX#FF5A03

RGBrgb(255, 90, 3)

RGB (0–1)1, 0.3529, 0.0118

RGB percentages100%, 35.3%, 1.2%

HSLhsl(20.7, 100%, 50.6%)

HSV / HSBhsv(20.7, 98.8%, 100%)

CMYK0%, 64.7%, 98.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,734,723

CSS custom property--colour: #FF5A03;

Brightness & contrast

Relative luminance0.28579WCAG 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 6.72:1

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

Contrast with black6.72:1WCAG normal text: AA

Greyscale equivalent#777777

Inverted#00A5FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8B7A00no red cones; affects about 1% of men; ΔE 66.5 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 40.2 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 text6.72:1WCAG large text: AAA

Named colours

Orange red · ΔE 8.2 Red · ΔE 21.4 Tomato · ΔE 23.5 Dark orange · ΔE 25.6 Chocolate · ΔE 26.8 Coral · ΔE 27.6

Nearest named CSS colourOrange red (#FF4500)ΔE 8.24, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03A8FF

Analogous#FF032A, #FFD803

Triadic#03FF5A, #5A03FF

Split complementary#03FFD8, #032AFF

Tetradic#2AFF03, #03A8FF, #D803FF

Tints, shades & saturation

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

Lighter +40%#FFE0CF

Lighter +30%#FFBE9C

Lighter +20%#FF9D69

Lighter +10%#FF7B36

Darker −10%#CF4700

Darker −20%#9C3600

Darker −30%#692400

Darker −40%#361300

More saturated +25%#FF5A03

Less saturated −25%#E06422

Channel breakdown

R255

G90

Red255 (100%)

Green90 (35.3%)

Blue3 (1.2%)

Hue20.71°

Saturation (HSL)100%

Lightness50.59%

Dominant channelRed

Hex per channelR FF · G 5A · B 03

Keep nerding

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

#FF5A03

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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