HueComb

Orange Soda

#fa5b3d

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

Hex

#fa5b3d

RGB

250, 91, 61

OKLCh

67.8% 0.200 32.8°

CIELAB (D50)

60.8, 60.6, 50.5

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 94% 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 57.8; on black, Lc -44.0. 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 38.8 and 42.7 and 47.4 — no red cone.

Text on this colour

White text

3.17:1 — large text only

Black text

6.63:1 — passes AA

Black text is the better of the two at6.63:1. That is enough for body text.

As text on white, it needs to change

#db3c1e 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

#fa5b3d

protanopia

#7c7c3f · ΔE00 38.8

deuteranopia

#a0a02e · ΔE00 42.7

tritanopia

#c0c000 · ΔE00 47.4

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isVermilion Orange at ΔE00 1.573: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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