HueComb

Corona

#ffb437

An orange that is saturated. It is very light — it works as a page background, not as text.

Hex

#ffb437

RGB

255, 180, 55

OKLCh

82.2% 0.157 75.1°

CIELAB (D50)

79.2, 20.8, 70.1

What is true of this colour, and of no other

  • 9 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 32.4; on black, Lc -70.3. 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 20.0 and 20.3 and 21.5 — no red cone.

Text on this colour

White text

1.77:1 — fails AA

Black text

11.84:1 — passes AA

Black text is the better of the two at11.84:1. That is enough for body text.

As text on white, it needs to change

#a16c00 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.

Try it against your own background

The same colour, with one cone missing

As you see it

#ffb437

protanopia

#bebe39 · ΔE00 20.0

deuteranopia

#cece2d · ΔE00 20.3

tritanopia

#dddd00 · ΔE00 21.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSunshine Surprise at ΔE00 0.985: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Sunshine SurpriseΔE00 0.985 · #fcb02f
  • Soft BoiledΔE00 1.091 · #ffb737
  • Sunset GlowΔE00 1.203 · #ffb52d
  • Squash BlossomΔE00 1.653 · #f8b438
  • Just DuckyΔE00 1.712 · #ffba45
  • Ripe PumpkinΔE00 1.821 · #ffaf37
  • Pieces of EightΔE00 1.895 · #ffaf38
  • Golden TreasureΔE00 1.937 · #ffb118
  • Glowing LanternΔE00 1.941 · #fbb736
  • Pale MarigoldΔE00 2.001 · #ffbb44
  • Extreme YellowΔE00 2.099 · #ffb729
  • Floral LeafΔE00 2.127 · #ffb94e

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