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Recognised as Colour

#E1503F

  • #E1503F
  • Red
  • Dark
  • Nearest: Tomato

#E1503F is a red with RGB values 225, 80, 63 and HSL 6°, 73%, 56%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E1503F#E1503F
HEX#E1503F
RGBrgb(225, 80, 63)
RGB (0–1)0.8824, 0.3137, 0.2471
RGB percentages88.2%, 31.4%, 24.7%
HSLhsl(6.3, 73%, 56.5%)
HSV / HSBhsv(6.3, 72%, 88.2%)
CMYK0%, 64.4%, 72%, 11.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,766,143
CSS custom property--colour: #E1503F;

Brightness & contrast

Relative luminance0.22104WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.42:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.42:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#1EAFC0

Colour vision & accessibility

Protanopia#786D3Cno red cones; affects about 1% of men; ΔE 60 from the original
Deuteranopia#9C8D3Ano green cones; the most common form, about 1% of men; ΔE 60.6 from the original
Tritanopia#F72A4Dno blue cones; rare, and affects men and women equally; ΔE 20.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 10.41, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#3FD0E1
Analogous#E13F7F, #E1A13F
Triadic#3FE150, #503FE1
Split complementary#3FE1A1, #3F7FE1
Tetradic#7FE13F, #3FD0E1, #A13FE1

Tints, shades & saturation

Lighter +40%#FDF1EF
Lighter +30%#F6C9C3
Lighter +20%#EFA097
Lighter +10%#E8786B
Darker −10%#CD3220
Darker −20%#A12719
Darker −30%#751D12
Darker −40%#49120B
More saturated +25%#FD3A23
Less saturated −25%#C5665B

Channel breakdown

R225
G80
B63
Red225 (88.2%)
Green80 (31.4%)
Blue63 (24.7%)
Hue6.3°
Saturation (HSL)72.97%
Lightness56.47%
Dominant channelRed
Hex per channelR E1 · G 50 · B 3F

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Every value on this page was computed from “e1503f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.