Space Dust
#002299
A blue that is saturated. It is dark — it carries white text and needs care with black.
Hex
#002299
RGB
0, 34, 153
OKLCh
34.2% 0.192 263.8°
CIELAB (D50)
20.4, 31.9, -67.8
What is true of this colour, and of no other
- 4 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 96.8; on black, Lc 0.0. 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.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
12.43:1 — passes AA
Black text
1.69:1 — fails AA
White text is the better of the two at12.43:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#002299
protanopia
#202099 · ΔE00 2.5
deuteranopia
#1c1c99 · ΔE00 2.8
tritanopia
#1616a3 · ΔE00 3.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isImperial Blue at ΔE00 0.615: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Imperial BlueΔE00 0.615 · #002395
- Deepsea KrakenΔE00 0.772 · #082599
- Celestial IndigoΔE00 1.31 · #091f92
- Neutrino BlueΔE00 1.476 · #01248f
- City Hunter BlueΔE00 2.141 · #0022aa
- Blue LustΔE00 2.161 · #012389
- Blue TorusΔE00 2.211 · #042993
- There Is LightΔE00 2.255 · #002288
- Lost in HeavenΔE00 2.275 · #002489
- Bright MidnightΔE00 2.437 · #011993
- Resolution BlueΔE00 2.449 · #002387
- Naval AdventuresΔE00 2.562 · #072688
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.