Colour

#E52F03

#E52F03
Red
Dark
Nearest: Orange red

#E52F03 is a red with RGB values 229, 47, 3 and HSL 12°, 97%, 45%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E52F03#E52F03

HEX#E52F03

RGBrgb(229, 47, 3)

RGB (0–1)0.898, 0.1843, 0.0118

RGB percentages89.8%, 18.4%, 1.2%

HSLhsl(11.7, 97.4%, 45.5%)

HSV / HSBhsv(11.7, 98.7%, 89.8%)

CMYK0%, 79.5%, 98.7%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,019,779

CSS custom property--colour: #E52F03;

Brightness & contrast

Relative luminance0.18698WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.74:1

Contrast with white4.43:1WCAG normal text: Fail

Contrast with black4.74:1WCAG normal text: AA

Greyscale equivalent#535353

Inverted#1AD0FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C5E00no red cones; affects about 1% of men; ΔE 72.5 from the original

Deuteranopia#988600no green cones; the most common form, about 1% of men; ΔE 72 from the original

Tritanopia#FD002Ano blue cones; rare, and affects men and women equally; ΔE 17 from the original

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

Contrast with white, large text4.43:1WCAG large text: AA

Contrast with black, large text4.74:1WCAG large text: AAA

Named colours

Orange red · ΔE 10 Red · ΔE 14.6 Tomato · ΔE 21.6 Firebrick · ΔE 29 Crimson · ΔE 29 Chocolate · ΔE 30.7

Nearest named CSS colourOrange red (#FF4500)ΔE 10.01, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03B9E5

Analogous#E50348, #E5A003

Triadic#03E52F, #2F03E5

Split complementary#03E5A0, #0348E5

Tetradic#48E503, #03B9E5, #A003E5

Tints, shades & saturation

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

Lighter +40%#FEC4B6

Lighter +30%#FD9B84

Lighter +20%#FD7351

Lighter +10%#FC4A1F

Darker −10%#B32502

Darker −20%#801A02

Darker −30%#4E1001

Darker −40%#1C0600

More saturated +25%#E82D00

Less saturated −25%#C84120

Channel breakdown

R229

G47

Red229 (89.8%)

Green47 (18.4%)

Blue3 (1.2%)

Hue11.68°

Saturation (HSL)97.41%

Lightness45.49%

Dominant channelRed

Hex per channelR E5 · G 2F · B 03

Keep nerding

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

#E52F03

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

Nerdulate something else