#455454All Nighter (#455454) is a grey neutral with an OKLCH hue of 196°, lightness 0.43 and chroma 0.019. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #455454 |
|---|---|
| RGB | rgb(69, 84, 84) |
| HSL | hsl(180, 10%, 30%) |
| HSV | hsv(180, 18%, 33%) |
| CMYK | cmyk(18%, 0%, 0%, 67%) |
| CIE Lab | lab(34.5 -5.8 -2) |
| OKLCH | oklch(0.433 0.019 196) |
Under warm 2700K interior light All Nighter 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 ≈ 1.1), so it is a lighting-stable choice.
#4a524e — ΔE 1.1, shifts only faintly, with no single dominant change#485452 — ΔE 0.5, is virtually unchanged#455454 — ΔE 0.0, is virtually unchanged#455455 — ΔE 0.2, is virtually unchangedTest All Nighter 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 7.93:1 and against black 2.65:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black 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.
#99a5a5 · #728080 · #455454 · #2e3b3b · #111c1c · #000404
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.
#4d798e · #2c6b78 · #455454 · #004e44 · #093f2c · #103017
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.
#95abc2 · #668eb6 · #5c6f82 · #455454 · #003f40 · #002324
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.
#97baba · #b3787b · #455454 · #263737 · #001e1f · #000506
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efef · #a1aeae · #6e6868 · #455454 · #2e3c3c · #020101
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.
#edf3f3 · #c3cbcb · #455454 · #1c2727 · #000606 · #e54d62
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#edf3f3 · #c3cbcb · #455454 · #1c2727 · #000606 · #eebc4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffeded · #cf9c9e · #90585b · #455454 · #552a2d · #000202
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffeded · #c89cb3 · #8e5c44 · #455454 · #502a3f · #0f0200
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#f8edfc · #bba0c5 · #826435 · #455454 · #4b340b · #020004
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f0f0ff · #a8a6d0 · #90585b · #455454 · #3d3b0d · #090001
#5F6D6D · #7A8787 · #97A1A1 · #B4BDBD · #D2D9D9
#394646 · #2D3939 · #212C2C · #161F1F · #0C1313
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.