#AAB5B8Casper (#AAB5B8) is a grey neutral with an OKLCH hue of 216°, lightness 0.77 and chroma 0.013. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #AAB5B8 |
|---|---|
| RGB | rgb(170, 181, 184) |
| HSL | hsl(193, 9%, 69%) |
| HSV | hsv(193, 8%, 72%) |
| CMYK | cmyk(8%, 2%, 0%, 28%) |
| CIE Lab | lab(72.9 -3.2 -2.8) |
| OKLCH | oklch(0.765 0.013 216) |
Under warm 2700K interior light Casper shifts only faintly, with no single dominant change; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.8), so it is a lighting-stable choice.
#b2b1ac — ΔE 1.8, shifts only faintly, with no single dominant change#b1b6b4 — ΔE 1.2, shifts only faintly, with no single dominant change#aab5b8 — ΔE 0.0, is virtually unchanged#aab6bb — ΔE 0.4, is virtually unchangedTest Casper in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 2.1:1 and against black 10.01:1, so black text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid white text on this color entirely.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#eaf4f6 · #c1cbce · #aab5b8 · #757f81 · #535b5d · #32393b
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#aee6dd · #91d3d7 · #aab5b8 · #73a8c4 · #6f92b3 · #6a7c9f
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#aab5b8 · #8a94ac · #47808e · #475884 · #0b4653 · #1d243a
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#c6dadf · #aab5b8 · #ba8171 · #547780 · #39575e · #24383d
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efed · #aab5b8 · #8d999d · #5f5958 · #1b282b · #030101
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#eef3f4 · #aab5b8 · #3c4344 · #1f2627 · #020506 · #ed603a
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#eef3f4 · #aab5b8 · #3c4344 · #1f2627 · #020506 · #ecbd4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffede9 · #aab5b8 · #b98a7e · #7f4b3d · #3f180e · #000305
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffede9 · #aab5b8 · #b88891 · #77522a · #3e1621 · #120500
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#fcecf8 · #aab5b8 · #af89a5 · #685b24 · #2e2500 · #030003
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f5eefe · #aab5b8 · #a08eb5 · #7f4b3d · #1e2a02 · #050000
#B6C0C2 · #C2CACC · #CED5D7 · #DAE0E1 · #E6EBEC
#8A9497 · #6C7477 · #4F5658 · #333A3B · #1A1F21
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.