Hot Shot

#ec4f28

A red that is saturated. It is light — black text sits on it comfortably, white text does not.

Hex

#ec4f28

RGB

236, 79, 40

OKLCh

64.0% 0.200 34.7°

CIELAB (D50)

56.5, 60.1, 55.6

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 88% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 63.2; on black, Lc -38.5. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 38.9 and 42.0 and 45.5 — no red cone.

Text on this colour

White text

3.67:1 — large text only

Black text

5.72:1 — passes AA

Black text is the better of the two at5.72:1. That is enough for body text.

As text on white, it needs to change

#da3d11 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#ec4f28

protanopia

#71712b · ΔE00 38.9

deuteranopia

#95950e · ΔE00 42.0

tritanopia

#b3b300 · ΔE00 45.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKaraka Orange at ΔE00 0.968: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Karaka OrangeΔE00 0.968 · #f04925
  • Chinese GoldfishΔE00 1.347 · #f34723
  • Burning TomatoΔE00 1.486 · #eb5030
  • Heating LampΔE00 1.651 · #ee4422
  • FuegoΔE00 1.776 · #ee5533
  • Scorpio Scarlet SealΔE00 1.87 · #e75323
  • Scoville HighΔE00 2.119 · #e34b26
  • Nasturtium FlowerΔE00 2.149 · #e64d1d
  • Reddish OrangeΔE00 2.213 · #f8481c
  • Day Glow OrangeΔE00 2.289 · #eb5c34
  • Volcanic BlastΔE00 2.362 · #e15835
  • Tilted PinballΔE00 2.363 · #ee5522

11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.