Tropical Forest
#024a43
A cyan that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.
Hex
#024a43
RGB
2, 74, 67
OKLCh
36.8% 0.064 184.0°
CIELAB (D50)
27.5, -22.3, -1.9
What is true of this colour, and of no other
- 2 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 93.2; on black, Lc -9.3. 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 18.7 and 20.6 and 30.9 — no red cone.
Text on this colour
White text
10.18:1 — passes AA
Black text
2.06:1 — fails AA
White text is the better of the two at10.18:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#024a43
protanopia
#464643 · ΔE00 18.7
deuteranopia
#3e3e44 · ΔE00 20.6
tritanopia
#35358c · ΔE00 30.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAqua Deep at ΔE00 0.558: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Aqua DeepΔE00 0.558 · #014b43
- Country SquireΔE00 1.395 · #124a42
- Stockade GreenΔE00 2.072 · #104f4a
- Swamp MausoleumΔE00 2.115 · #094c49
- Action GreenΔE00 2.186 · #00504b
- Swedish GreenΔE00 2.379 · #184d43
- Deep Into the JungleΔE00 2.391 · #004b49
- Myrtle Deep GreenΔE00 2.639 · #00524c
- Green OblivionΔE00 2.664 · #005249
- Plankton GreenΔE00 2.891 · #00534c
- LacustralΔE00 3.046 · #19504c
- Fjord GreenΔE00 3.154 · #005043
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.