Colour

#EF5A04

#EF5A04
Orange
Dark
Nearest: Orange red

#EF5A04 is a orange with RGB values 239, 90, 4 and HSL 22°, 97%, 48%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#EF5A04#EF5A04

HEX#EF5A04

RGBrgb(239, 90, 4)

RGB (0–1)0.9373, 0.3529, 0.0157

RGB percentages93.7%, 35.3%, 1.6%

HSLhsl(22, 96.7%, 47.6%)

HSV / HSBhsv(22, 98.3%, 93.7%)

CMYK0%, 62.3%, 98.3%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,686,148

CSS custom property--colour: #EF5A04;

Brightness & contrast

Relative luminance0.25672WCAG 2.x, 0 is black and 1 is white

Perceived brightness147.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.13:1

Contrast with white3.42:1WCAG normal text: Fail

Contrast with black6.13:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#10A5FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#867500no red cones; affects about 1% of men; ΔE 60.4 from the original

Deuteranopia#AB9700no green cones; the most common form, about 1% of men; ΔE 60.3 from the original

Tritanopia#FF2E4Dno blue cones; rare, and affects men and women equally; ΔE 37.6 from the original

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

Contrast with white, large text3.42:1WCAG large text: AA

Contrast with black, large text6.13:1WCAG large text: AAA

Named colours

Orange red · ΔE 13.3 Chocolate · ΔE 20.3 Tomato · ΔE 21 Dark orange · ΔE 23.1 Coral · ΔE 23.4 Red · ΔE 25.9

Nearest named CSS colourOrange red (#FF4500)ΔE 13.35, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0499EF

Analogous#EF0423, #EFD004

Triadic#04EF5A, #5A04EF

Split complementary#04EFD0, #0423EF

Tetradic#23EF04, #0499EF, #D004EF

Tints, shades & saturation

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

Lighter +40%#FED7C1

Lighter +30%#FDB78F

Lighter +20%#FC975D

Lighter +10%#FB772B

Darker −10%#BD4703

Darker −20%#8B3402

Darker −30%#592101

Darker −40%#260E01

More saturated +25%#F35900

Less saturated −25%#D16222

Channel breakdown

R239

G90

Red239 (93.7%)

Green90 (35.3%)

Blue4 (1.6%)

Hue21.96°

Saturation (HSL)96.71%

Lightness47.65%

Dominant channelRed

Hex per channelR EF · G 5A · B 04

Keep nerding

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

#EF5A04

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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